1204495920 has 200 divisors, whose sum is σ = 4205021040. Its totient is φ = 319541760.

The previous prime is 1204495913. The next prime is 1204495927. The reversal of 1204495920 is 295944021.

1204495920 is a `hidden beast` number, since 1 + 20 + 4 + 49 + 592 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1204495913) and next prime (1204495927).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1204495927) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1742775 + ... + 1743465.

Almost surely, 2^1204495920 is an apocalyptic number.

1204495920 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 1204495920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2102510520).

1204495920 is an abundant number, since it is smaller than the sum of its proper divisors (3000525120).

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

1204495920 is a wasteful number, since it uses less digits than its factorization.

1204495920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1204495920 is about 34705.8484984880. The cubic root of 1204495920 is about 1063.9840340944.

The spelling of 1204495920 in words is "one billion, two hundred four million, four hundred ninety-five thousand, nine hundred twenty".