1194213240 has 128 divisors (see below), whose sum is σ = 4342636800. Its totient is φ = 289503360.

The previous prime is 1194213239. The next prime is 1194213259. The reversal of 1194213240 is 423124911.

It is a happy number.

It is a super-2 number, since 2×1194213240² = 2852290525182595200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38382 + ... + 62141.

It is an arithmetic number, because the mean of its divisors is an integer number (33926850).

Almost surely, 2^1194213240 is an apocalyptic number.

1194213240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1194213240 is an abundant number, since it is smaller than the sum of its proper divisors (3148423560).

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

1194213240 is a wasteful number, since it uses less digits than its factorization.

1194213240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100554 (or 100544 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1194213240 is about 34557.3905264851. The cubic root of 1194213240 is about 1060.9476632551.

The spelling of 1194213240 in words is "one billion, one hundred ninety-four million, two hundred thirteen thousand, two hundred forty".