74489278 has 12 divisors (see below), whose sum is σ = 112524552. Its totient is φ = 36982920.

The previous prime is 74489243. The next prime is 74489293. The reversal of 74489278 is 87298447.

It is a super-2 number, since 2×74489278² = 11097305073922568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48543 + ... + 50053.

It is an arithmetic number, because the mean of its divisors is an integer number (9377046).

Almost surely, 2^74489278 is an apocalyptic number.

74489278 is a deficient number, since it is larger than the sum of its proper divisors (38035274).

74489278 is a wasteful number, since it uses less digits than its factorization.

74489278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827 (or 1670 counting only the distinct ones).

The product of its digits is 903168, while the sum is 49.

The square root of 74489278 is about 8630.7171196836. The cubic root of 74489278 is about 420.7569079746.

The spelling of 74489278 in words is "seventy-four million, four hundred eighty-nine thousand, two hundred seventy-eight".