74223512 has 16 divisors (see below), whose sum is σ = 151821000. Its totient is φ = 33737920.

The previous prime is 74223511. The next prime is 74223521. The reversal of 74223512 is 21532247.

It is a super-2 number, since 2×74223512² = 11018259467228288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74223511) 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 in 3 ways as a sum of consecutive naturals, for example, 421637 + ... + 421812.

Almost surely, 2^74223512 is an apocalyptic number.

It is an amenable number.

74223512 is an abundant number, since it is smaller than the sum of its proper divisors (77597488).

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

74223512 is a wasteful number, since it uses less digits than its factorization.

74223512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843466 (or 843462 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 74223512 is about 8615.3068430556. The cubic root of 74223512 is about 420.2559135745.

Adding to 74223512 its reverse (21532247), we get a palindrome (95755759).

It can be divided in two parts, 742235 and 12, that added together give a palindrome (742247).

The spelling of 74223512 in words is "seventy-four million, two hundred twenty-three thousand, five hundred twelve".