74945270 has 16 divisors (see below), whose sum is σ = 140767200. Its totient is φ = 28674624.

The previous prime is 74945243. The next prime is 74945279. The reversal of 74945270 is 7254947.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74945279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162695 + ... + 163154.

It is an arithmetic number, because the mean of its divisors is an integer number (8797950).

Almost surely, 2^74945270 is an apocalyptic number.

74945270 is a deficient number, since it is larger than the sum of its proper divisors (65821930).

74945270 is a wasteful number, since it uses less digits than its factorization.

74945270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325879.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 74945270 is about 8657.0936231509. The cubic root of 74945270 is about 421.6137275337.

The spelling of 74945270 in words is "seventy-four million, nine hundred forty-five thousand, two hundred seventy".