74740668 has 12 divisors (see below), whose sum is σ = 174394920. Its totient is φ = 24913552.

The previous prime is 74740667. The next prime is 74740681. The reversal of 74740668 is 86604747.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74740667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3114183 + ... + 3114206.

It is an arithmetic number, because the mean of its divisors is an integer number (14532910).

Almost surely, 2^74740668 is an apocalyptic number.

It is an amenable number.

74740668 is an abundant number, since it is smaller than the sum of its proper divisors (99654252).

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

74740668 is a wasteful number, since it uses less digits than its factorization.

74740668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6228396 (or 6228394 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 74740668 is about 8645.2685325558. The cubic root of 74740668 is about 421.2297067185.

The spelling of 74740668 in words is "seventy-four million, seven hundred forty thousand, six hundred sixty-eight".