74726464 has 28 divisors (see below), whose sum is σ = 150724108. Its totient is φ = 36748800.

The previous prime is 74726429. The next prime is 74726467. The reversal of 74726464 is 46462747.

It can be written as a sum of positive squares in 2 ways, for example, as 17572864 + 57153600 = 4192^2 + 7560^2 .

It is not an unprimeable number, because it can be changed into a prime (74726467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5667 + ... + 13474.

Almost surely, 2^74726464 is an apocalyptic number.

It is an amenable number.

74726464 is an abundant number, since it is smaller than the sum of its proper divisors (75997644).

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

74726464 is a wasteful number, since it uses less digits than its factorization.

74726464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19214 (or 19204 counting only the distinct ones).

The product of its digits is 225792, while the sum is 40.

The square root of 74726464 is about 8644.4470037128. The cubic root of 74726464 is about 421.2030209976.

The spelling of 74726464 in words is "seventy-four million, seven hundred twenty-six thousand, four hundred sixty-four".