74288616 has 32 divisors (see below), whose sum is σ = 189228960. Its totient is φ = 24295232.

The previous prime is 74288603. The next prime is 74288629. The reversal of 74288616 is 61688247.

It is an interprime number because it is at equal distance from previous prime (74288603) and next prime (74288629).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27930 + ... + 30473.

It is an arithmetic number, because the mean of its divisors is an integer number (5913405).

Almost surely, 2^74288616 is an apocalyptic number.

It is an amenable number.

74288616 is an abundant number, since it is smaller than the sum of its proper divisors (114940344).

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

74288616 is a wasteful number, since it uses less digits than its factorization.

74288616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58465 (or 58461 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 74288616 is about 8619.0844061304. The cubic root of 74288616 is about 420.3787513141.

The spelling of 74288616 in words is "seventy-four million, two hundred eighty-eight thousand, six hundred sixteen".