74774616 has 32 divisors (see below), whose sum is σ = 213642240. Its totient is φ = 21364128.

The previous prime is 74774597. The next prime is 74774629. The reversal of 74774616 is 61647747.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222376 + ... + 222711.

It is an arithmetic number, because the mean of its divisors is an integer number (6676320).

Almost surely, 2^74774616 is an apocalyptic number.

It is an amenable number.

74774616 is an abundant number, since it is smaller than the sum of its proper divisors (138867624).

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

74774616 is a wasteful number, since it uses less digits than its factorization.

74774616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445103 (or 445099 counting only the distinct ones).

The product of its digits is 197568, while the sum is 42.

The square root of 74774616 is about 8647.2316957510. The cubic root of 74774616 is about 421.2934727241.

The spelling of 74774616 in words is "seventy-four million, seven hundred seventy-four thousand, six hundred sixteen".