1992425904 has 80 divisors (see below), whose sum is σ = 6536010240. Its totient is φ = 569263680.

The previous prime is 1992425849. The next prime is 1992425951. The reversal of 1992425904 is 4095242991.

1992425904 is a `hidden beast` number, since 19 + 9 + 2 + 42 + 590 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1992425904.

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, 326412 + ... + 332459.

It is an arithmetic number, because the mean of its divisors is an integer number (81700128).

Almost surely, 2^1992425904 is an apocalyptic number.

1992425904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1992425904 is an abundant number, since it is smaller than the sum of its proper divisors (4543584336).

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

1992425904 is a wasteful number, since it uses less digits than its factorization.

1992425904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658895 (or 658883 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 1992425904 is about 44636.5982574837. The cubic root of 1992425904 is about 1258.3285774460.

The spelling of 1992425904 in words is "one billion, nine hundred ninety-two million, four hundred twenty-five thousand, nine hundred four".