74416648 has 8 divisors (see below), whose sum is σ = 139531230. Its totient is φ = 37208320.

The previous prime is 74416637. The next prime is 74416649. The reversal of 74416648 is 84661447.

It can be written as a sum of positive squares in only one way, i.e., 65901924 + 8514724 = 8118^2 + 2918^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 74416648.

It is not an unprimeable number, because it can be changed into a prime (74416649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4651033 + ... + 4651048.

Almost surely, 2^74416648 is an apocalyptic number.

It is an amenable number.

74416648 is a deficient number, since it is larger than the sum of its proper divisors (65114582).

74416648 is a wasteful number, since it uses less digits than its factorization.

74416648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9302087 (or 9302083 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 74416648 is about 8626.5084478020. The cubic root of 74416648 is about 420.6201119475.

The spelling of 74416648 in words is "seventy-four million, four hundred sixteen thousand, six hundred forty-eight".