74814816 has 48 divisors (see below), whose sum is σ = 196862400. Its totient is φ = 24878208.

The previous prime is 74814793. The next prime is 74814823. The reversal of 74814816 is 61841847.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×74814816² = 11194513386227712, which contains 22 as substring.

It is a congruent number.

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, 58795 + ... + 60053.

It is an arithmetic number, because the mean of its divisors is an integer number (4101300).

Almost surely, 2^74814816 is an apocalyptic number.

It is an amenable number.

74814816 is an abundant number, since it is smaller than the sum of its proper divisors (122047584).

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

74814816 is a wasteful number, since it uses less digits than its factorization.

74814816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891 (or 1883 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 74814816 is about 8649.5558267462. Note that the first 3 decimals coincide. The cubic root of 74814816 is about 421.3689571795.

The spelling of 74814816 in words is "seventy-four million, eight hundred fourteen thousand, eight hundred sixteen".