22470661 has 4 divisors (see below), whose sum is σ = 22806112. Its totient is φ = 22135212.

The previous prime is 22470659. The next prime is 22470697. The reversal of 22470661 is 16607422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22470661 - 2¹ = 22470659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22470361) 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, 167625 + ... + 167758.

It is an arithmetic number, because the mean of its divisors is an integer number (5701528).

Almost surely, 2^22470661 is an apocalyptic number.

It is an amenable number.

22470661 is a deficient number, since it is larger than the sum of its proper divisors (335451).

22470661 is an equidigital number, since it uses as much as digits as its factorization.

22470661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335450.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 22470661 is about 4740.3228792984. The cubic root of 22470661 is about 282.1880483751.

The spelling of 22470661 in words is "twenty-two million, four hundred seventy thousand, six hundred sixty-one".