74651968 has 56 divisors (see below), whose sum is σ = 154497024. Its totient is φ = 35750400.

The previous prime is 74651963. The next prime is 74651971. The reversal of 74651968 is 86915647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74651963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378846 + ... + 379042.

Almost surely, 2^74651968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74651968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77248512).

74651968 is an abundant number, since it is smaller than the sum of its proper divisors (79845056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74651968 is a wasteful number, since it uses less digits than its factorization.

74651968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 421 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 74651968 is about 8640.1370359503. The cubic root of 74651968 is about 421.0630064637.

The spelling of 74651968 in words is "seventy-four million, six hundred fifty-one thousand, nine hundred sixty-eight".