1520481600 has 504 divisors, whose sum is σ = 6117153120. Its totient is φ = 354816000.

The previous prime is 1520481587. The next prime is 1520481617. The reversal of 1520481600 is 61840251.

1520481600 is a `hidden beast` number, since 1 + 52 + 0 + 4 + 8 + 1 + 600 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4593435 + ... + 4593765.

Almost surely, 2^1520481600 is an apocalyptic number.

1520481600 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 1520481600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3058576560).

1520481600 is an abundant number, since it is smaller than the sum of its proper divisors (4596671520).

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

1520481600 is a wasteful number, since it uses less digits than its factorization.

1520481600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1520481600 is about 38993.3532797578. The cubic root of 1520481600 is about 1149.9008358098.

The spelling of 1520481600 in words is "one billion, five hundred twenty million, four hundred eighty-one thousand, six hundred".