74345072 has 10 divisors (see below), whose sum is σ = 144043608. Its totient is φ = 37172528.

The previous prime is 74345071. The next prime is 74345077. The reversal of 74345072 is 27054347.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74345071) by changing a digit.

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 as a sum of consecutive naturals, namely, 2323268 + ... + 2323299.

Almost surely, 2^74345072 is an apocalyptic number.

It is an amenable number.

74345072 is a deficient number, since it is larger than the sum of its proper divisors (69698536).

74345072 is a wasteful number, since it uses less digits than its factorization.

74345072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4646575 (or 4646569 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 74345072 is about 8622.3588419875. The cubic root of 74345072 is about 420.4852139846.

The spelling of 74345072 in words is "seventy-four million, three hundred forty-five thousand, seventy-two".