74140668 has 72 divisors (see below), whose sum is σ = 215255040. Its totient is φ = 21077280.

The previous prime is 74140613. The next prime is 74140673. The reversal of 74140668 is 86604147.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59613 + ... + 60843.

Almost surely, 2^74140668 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 74140668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107627520).

74140668 is an abundant number, since it is smaller than the sum of its proper divisors (141114372).

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

74140668 is a wasteful number, since it uses less digits than its factorization.

74140668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 74140668 is about 8610.4975465997. The cubic root of 74140668 is about 420.0995002355.

The spelling of 74140668 in words is "seventy-four million, one hundred forty thousand, six hundred sixty-eight".