1604992512 has 160 divisors (see below), whose sum is σ = 4537995264. Its totient is φ = 503193600.

The previous prime is 1604992471. The next prime is 1604992541. The reversal of 1604992512 is 2152994061.

It is a super-3 number, since 3×1604992512³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1761337 + ... + 1762247.

Almost surely, 2^1604992512 is an apocalyptic number.

1604992512 is a gapful number since it is divisible by the number (12) 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 1604992512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2268997632).

1604992512 is an abundant number, since it is smaller than the sum of its proper divisors (2933002752).

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

1604992512 is an equidigital number, since it uses as much as digits as its factorization.

1604992512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 1604992512 is about 40062.3577938194. The cubic root of 1604992512 is about 1170.8223483047.

The spelling of 1604992512 in words is "one billion, six hundred four million, nine hundred ninety-two thousand, five hundred twelve".