74739470 has 32 divisors (see below), whose sum is σ = 146397888. Its totient is φ = 27307008.

The previous prime is 74739449. The next prime is 74739473. The reversal of 74739470 is 7493747.

74739470 is nontrivially palindromic in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74739473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9647 + ... + 15573.

It is an arithmetic number, because the mean of its divisors is an integer number (4574934).

Almost surely, 2^74739470 is an apocalyptic number.

74739470 is a deficient number, since it is larger than the sum of its proper divisors (71658418).

74739470 is a wasteful number, since it uses less digits than its factorization.

74739470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6044.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 74739470 is about 8645.1992458242. The cubic root of 74739470 is about 421.2274561102.

The spelling of 74739470 in words is "seventy-four million, seven hundred thirty-nine thousand, four hundred seventy".