74272478 has 16 divisors (see below), whose sum is σ = 127876320. Its totient is φ = 31693056.

The previous prime is 74272469. The next prime is 74272483. The reversal of 74272478 is 87427247.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8123 + ... + 14646.

It is an arithmetic number, because the mean of its divisors is an integer number (7992270).

Almost surely, 2^74272478 is an apocalyptic number.

74272478 is a deficient number, since it is larger than the sum of its proper divisors (53603842).

74272478 is a wasteful number, since it uses less digits than its factorization.

74272478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23011.

The product of its digits is 175616, while the sum is 41.

The square root of 74272478 is about 8618.1481769577. The cubic root of 74272478 is about 420.3483089487.

The spelling of 74272478 in words is "seventy-four million, two hundred seventy-two thousand, four hundred seventy-eight".