74086840 has 16 divisors (see below), whose sum is σ = 166695480. Its totient is φ = 29634720.

The previous prime is 74086829. The next prime is 74086891. The reversal of 74086840 is 4868047.

It is a super-2 number, since 2×74086840² = 10977719722371200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74086840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926046 + ... + 926125.

Almost surely, 2^74086840 is an apocalyptic number.

It is an amenable number.

74086840 is an abundant number, since it is smaller than the sum of its proper divisors (92608640).

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

74086840 is a wasteful number, since it uses less digits than its factorization.

74086840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852182 (or 1852178 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 74086840 is about 8607.3712595658. The cubic root of 74086840 is about 419.9978080007.

The spelling of 74086840 in words is "seventy-four million, eighty-six thousand, eight hundred forty".