74438570 has 16 divisors (see below), whose sum is σ = 134120448. Its totient is φ = 29746320.

The previous prime is 74438569. The next prime is 74438579. The reversal of 74438570 is 7583447.

It is a super-2 number, since 2×74438570² = 11082201407289800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74438579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9287 + ... + 15333.

It is an arithmetic number, because the mean of its divisors is an integer number (8382528).

Almost surely, 2^74438570 is an apocalyptic number.

74438570 is a deficient number, since it is larger than the sum of its proper divisors (59681878).

74438570 is a wasteful number, since it uses less digits than its factorization.

74438570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7285.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 74438570 is about 8627.7789725978. The cubic root of 74438570 is about 420.6614106311.

The spelling of 74438570 in words is "seventy-four million, four hundred thirty-eight thousand, five hundred seventy".