22472746 has 24 divisors (see below), whose sum is σ = 35436960. Its totient is φ = 10684296.

The previous prime is 22472743. The next prime is 22472753. The reversal of 22472746 is 64727422.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22472741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218131 + ... + 218233.

It is an arithmetic number, because the mean of its divisors is an integer number (1476540).

Almost surely, 2^22472746 is an apocalyptic number.

22472746 is a deficient number, since it is larger than the sum of its proper divisors (12964214).

22472746 is a wasteful number, since it uses less digits than its factorization.

22472746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 207 counting only the distinct ones).

The product of its digits is 37632, while the sum is 34.

The square root of 22472746 is about 4740.5427959254. The cubic root of 22472746 is about 282.1967759611.

The spelling of 22472746 in words is "twenty-two million, four hundred seventy-two thousand, seven hundred forty-six".