74745270 has 24 divisors (see below), whose sum is σ = 194337936. Its totient is φ = 19932048.

The previous prime is 74745263. The next prime is 74745283. The reversal of 74745270 is 7254747.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415162 + ... + 415341.

It is an arithmetic number, because the mean of its divisors is an integer number (8097414).

Almost surely, 2^74745270 is an apocalyptic number.

74745270 is an abundant number, since it is smaller than the sum of its proper divisors (119592666).

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

74745270 is a wasteful number, since it uses less digits than its factorization.

74745270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830516 (or 830513 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 74745270 is about 8645.5346856050. The cubic root of 74745270 is about 421.2383519865.

The spelling of 74745270 in words is "seventy-four million, seven hundred forty-five thousand, two hundred seventy".