74220712 has 16 divisors (see below), whose sum is σ = 139659840. Its totient is φ = 36978096.

The previous prime is 74220703. The next prime is 74220719. The reversal of 74220712 is 21702247.

It is not an unprimeable number, because it can be changed into a prime (74220719) 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, 14128 + ... + 18655.

It is an arithmetic number, because the mean of its divisors is an integer number (8728740).

Almost surely, 2^74220712 is an apocalyptic number.

It is an amenable number.

74220712 is a deficient number, since it is larger than the sum of its proper divisors (65439128).

74220712 is a wasteful number, since it uses less digits than its factorization.

74220712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33072 (or 33068 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 74220712 is about 8615.1443400561. The cubic root of 74220712 is about 420.2506289447.

Adding to 74220712 its reverse (21702247), we get a palindrome (95922959).

The spelling of 74220712 in words is "seventy-four million, two hundred twenty thousand, seven hundred twelve".