874531640 has 64 divisors (see below), whose sum is σ = 2022572160. Its totient is φ = 340116480.

The previous prime is 874531633. The next prime is 874531657. The reversal of 874531640 is 46135478.

It is a super-2 number, since 2×874531640² = 1529611178722179200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 874531594 and 874531603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601154 + ... + 602606.

It is an arithmetic number, because the mean of its divisors is an integer number (31602690).

Almost surely, 2^874531640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 874531640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1011286080).

874531640 is an abundant number, since it is smaller than the sum of its proper divisors (1148040520).

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

874531640 is a wasteful number, since it uses less digits than its factorization.

874531640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872 (or 1868 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 874531640 is about 29572.4811268855. The cubic root of 874531640 is about 956.2949056048.

The spelling of 874531640 in words is "eight hundred seventy-four million, five hundred thirty-one thousand, six hundred forty".