74756740 has 12 divisors (see below), whose sum is σ = 156989196. Its totient is φ = 29902688.

The previous prime is 74756729. The next prime is 74756741. The reversal of 74756740 is 4765747.

It can be written as a sum of positive squares in 2 ways, for example, as 21086464 + 53670276 = 4592^2 + 7326^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74756693 and 74756702.

It is not an unprimeable number, because it can be changed into a prime (74756741) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1868899 + ... + 1868938.

It is an arithmetic number, because the mean of its divisors is an integer number (13082433).

Almost surely, 2^74756740 is an apocalyptic number.

It is an amenable number.

74756740 is an abundant number, since it is smaller than the sum of its proper divisors (82232456).

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

74756740 is a wasteful number, since it uses less digits than its factorization.

74756740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3737846 (or 3737844 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 40.

The square root of 74756740 is about 8646.1980083734. The cubic root of 74756740 is about 421.2598978617.

The spelling of 74756740 in words is "seventy-four million, seven hundred fifty-six thousand, seven hundred forty".