74492470 has 64 divisors (see below), whose sum is σ = 157199616. Its totient is φ = 25159680.

The previous prime is 74492447. The next prime is 74492471. The reversal of 74492470 is 7429447.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74492471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81315 + ... + 82225.

It is an arithmetic number, because the mean of its divisors is an integer number (2456244).

Almost surely, 2^74492470 is an apocalyptic number.

74492470 is an abundant number, since it is smaller than the sum of its proper divisors (82707146).

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

74492470 is a wasteful number, since it uses less digits than its factorization.

74492470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 74492470 is about 8630.9020386052. The cubic root of 74492470 is about 420.7629179531.

The spelling of 74492470 in words is "seventy-four million, four hundred ninety-two thousand, four hundred seventy".