74075780 has 24 divisors (see below), whose sum is σ = 155879640. Its totient is φ = 29569280.

The previous prime is 74075767. The next prime is 74075819. The reversal of 74075780 is 8757047.

It can be written as a sum of positive squares in 4 ways, for example, as 12544 + 74063236 = 112^2 + 8606^2 .

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 7 ways as a sum of consecutive naturals, for example, 6866 + ... + 13974.

It is an arithmetic number, because the mean of its divisors is an integer number (6494985).

Almost surely, 2^74075780 is an apocalyptic number.

It is an amenable number.

74075780 is an abundant number, since it is smaller than the sum of its proper divisors (81803860).

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

74075780 is a wasteful number, since it uses less digits than its factorization.

74075780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7639 (or 7637 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 74075780 is about 8606.7287630086. The cubic root of 74075780 is about 419.9769072715.

The spelling of 74075780 in words is "seventy-four million, seventy-five thousand, seven hundred eighty".