874592640 has 160 divisors (see below), whose sum is σ = 3123513360. Its totient is φ = 233210880.

The previous prime is 874592639. The next prime is 874592657. The reversal of 874592640 is 46295478.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43405 + ... + 60275.

Almost surely, 2^874592640 is an apocalyptic number.

874592640 is a gapful number since it is divisible by the number (80) 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 874592640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1561756680).

874592640 is an abundant number, since it is smaller than the sum of its proper divisors (2248920720).

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

874592640 is a wasteful number, since it uses less digits than its factorization.

874592640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16902 (or 16881 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 874592640 is about 29573.5124731575. The cubic root of 874592640 is about 956.3171394613.

The spelling of 874592640 in words is "eight hundred seventy-four million, five hundred ninety-two thousand, six hundred forty".