1634425992 has 64 divisors (see below), whose sum is σ = 4575897600. Its totient is φ = 540509760.

The previous prime is 1634425913. The next prime is 1634426071. The reversal of 1634425992 is 2995244361.

1634425992 is a `hidden beast` number, since 1 + 634 + 4 + 2 + 5 + 9 + 9 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1634425913) and next prime (1634426071).

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, 2359 + ... + 57222.

It is an arithmetic number, because the mean of its divisors is an integer number (71498400).

Almost surely, 2^1634425992 is an apocalyptic number.

1634425992 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 1634425992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2287948800).

1634425992 is an abundant number, since it is smaller than the sum of its proper divisors (2941471608).

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

1634425992 is a wasteful number, since it uses less digits than its factorization.

1634425992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59723 (or 59713 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 1634425992 is about 40428.0347283911. The cubic root of 1634425992 is about 1177.9361587597.

The spelling of 1634425992 in words is "one billion, six hundred thirty-four million, four hundred twenty-five thousand, nine hundred ninety-two".