74078672 has 10 divisors (see below), whose sum is σ = 143527458. Its totient is φ = 37039328.

The previous prime is 74078671. The next prime is 74078681. The reversal of 74078672 is 27687047.

It can be written as a sum of positive squares in only one way, i.e., 61089856 + 12988816 = 7816^2 + 3604^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74078671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2314943 + ... + 2314974.

Almost surely, 2^74078672 is an apocalyptic number.

It is an amenable number.

74078672 is a deficient number, since it is larger than the sum of its proper divisors (69448786).

74078672 is a wasteful number, since it uses less digits than its factorization.

74078672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4629925 (or 4629919 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 74078672 is about 8606.8967694518. The cubic root of 74078672 is about 419.9823726540.

The spelling of 74078672 in words is "seventy-four million, seventy-eight thousand, six hundred seventy-two".