1194784920 has 192 divisors, whose sum is σ = 4591080000. Its totient is φ = 263660544.

The previous prime is 1194784907. The next prime is 1194784951. The reversal of 1194784920 is 294874911.

It is a happy number.

1194784920 is a `hidden beast` number, since 1 + 1 + 94 + 78 + 492 + 0 = 666.

1194784920 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1194784920² = 2855022010118812800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64906 + ... + 81254.

It is an arithmetic number, because the mean of its divisors is an integer number (23911875).

Almost surely, 2^1194784920 is an apocalyptic number.

1194784920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1194784920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2295540000).

1194784920 is an abundant number, since it is smaller than the sum of its proper divisors (3396295080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1194784920 is a wasteful number, since it uses less digits than its factorization.

1194784920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16402 (or 16395 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 1194784920 is about 34565.6609946924. The cubic root of 1194784920 is about 1061.1169311276.

The spelling of 1194784920 in words is "one billion, one hundred ninety-four million, seven hundred eighty-four thousand, nine hundred twenty".