74547472 has 20 divisors (see below), whose sum is σ = 144616860. Its totient is φ = 37227008.

The previous prime is 74547457. The next prime is 74547497. The reversal of 74547472 is 27474547.

It can be written as a sum of positive squares in 2 ways, for example, as 41783296 + 32764176 = 6464^2 + 5724^2 .

It is an alternating number because its digits alternate between odd and even.

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, 12804 + ... + 17692.

It is an arithmetic number, because the mean of its divisors is an integer number (7230843).

Almost surely, 2^74547472 is an apocalyptic number.

It is an amenable number.

74547472 is a deficient number, since it is larger than the sum of its proper divisors (70069388).

74547472 is a wasteful number, since it uses less digits than its factorization.

74547472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5850 (or 5844 counting only the distinct ones).

The product of its digits is 219520, while the sum is 40.

The square root of 74547472 is about 8634.0877920021. The cubic root of 74547472 is about 420.8664501556.

The spelling of 74547472 in words is "seventy-four million, five hundred forty-seven thousand, four hundred seventy-two".