74886644 has 12 divisors (see below), whose sum is σ = 149773344. Its totient is φ = 32094264.

The previous prime is 74886629. The next prime is 74886677. The reversal of 74886644 is 44668847.

74886644 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1337234 + ... + 1337289.

It is an arithmetic number, because the mean of its divisors is an integer number (12481112).

Almost surely, 2^74886644 is an apocalyptic number.

It is an amenable number.

74886644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74886644 is a wasteful number, since it uses less digits than its factorization.

74886644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674534 (or 2674532 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 47.

The square root of 74886644 is about 8653.7069513591. The cubic root of 74886644 is about 421.5037629586.

It can be divided in two parts, 74 and 886644, that multiplied together give a palindrome (65611656).

The spelling of 74886644 in words is "seventy-four million, eight hundred eighty-six thousand, six hundred forty-four".