74416840 has 16 divisors (see below), whose sum is σ = 167437980. Its totient is φ = 29766720.

The previous prime is 74416829. The next prime is 74416873. The reversal of 74416840 is 4861447.

It can be written as a sum of positive squares in 2 ways, for example, as 69655716 + 4761124 = 8346^2 + 2182^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74416796 and 74416805.

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, 930171 + ... + 930250.

Almost surely, 2^74416840 is an apocalyptic number.

It is an amenable number.

74416840 is an abundant number, since it is smaller than the sum of its proper divisors (93021140).

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

74416840 is a wasteful number, since it uses less digits than its factorization.

74416840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860432 (or 1860428 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 74416840 is about 8626.5195762834. The cubic root of 74416840 is about 420.6204736900.

The spelling of 74416840 in words is "seventy-four million, four hundred sixteen thousand, eight hundred forty".