74287408 has 80 divisors (see below), whose sum is σ = 164489472. Its totient is φ = 32256000.

The previous prime is 74287393. The next prime is 74287427. The reversal of 74287408 is 80478247.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264228 + ... + 264508.

Almost surely, 2^74287408 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 74287408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82244736).

74287408 is an abundant number, since it is smaller than the sum of its proper divisors (90202064).

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

74287408 is a wasteful number, since it uses less digits than its factorization.

74287408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 40.

The square root of 74287408 is about 8619.0143287965. The cubic root of 74287408 is about 420.3764727224.

The spelling of 74287408 in words is "seventy-four million, two hundred eighty-seven thousand, four hundred eight".