22420712 has 32 divisors (see below), whose sum is σ = 43777800. Its totient is φ = 10752000.

The previous prime is 22420693. The next prime is 22420747. The reversal of 22420712 is 21702422.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22221796 + 198916 = 4714^2 + 446^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55712 + ... + 56112.

Almost surely, 2^22420712 is an apocalyptic number.

It is an amenable number.

22420712 is a deficient number, since it is larger than the sum of its proper divisors (21357088).

22420712 is a wasteful number, since it uses less digits than its factorization.

22420712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 22420712 is about 4735.0514252751. The cubic root of 22420712 is about 281.9788056435.

It can be divided in two parts, 22420 and 712, that added together give a palindrome (23132).

The spelling of 22420712 in words is "twenty-two million, four hundred twenty thousand, seven hundred twelve".