74390064 has 40 divisors (see below), whose sum is σ = 219628800. Its totient is φ = 21254208.

The previous prime is 74390059. The next prime is 74390077. The reversal of 74390064 is 46009347.

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, 110364 + ... + 111035.

It is an arithmetic number, because the mean of its divisors is an integer number (5490720).

Almost surely, 2^74390064 is an apocalyptic number.

It is an amenable number.

74390064 is an abundant number, since it is smaller than the sum of its proper divisors (145238736).

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

74390064 is a wasteful number, since it uses less digits than its factorization.

74390064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221417 (or 221411 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 74390064 is about 8624.9674781996. The cubic root of 74390064 is about 420.5700196760.

The spelling of 74390064 in words is "seventy-four million, three hundred ninety thousand, sixty-four".