22240470 has 32 divisors (see below), whose sum is σ = 61003008. Its totient is φ = 5083488.

The previous prime is 22240457. The next prime is 22240499. The reversal of 22240470 is 7404222.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52744 + ... + 53163.

It is an arithmetic number, because the mean of its divisors is an integer number (1906344).

Almost surely, 2^22240470 is an apocalyptic number.

22240470 is an abundant number, since it is smaller than the sum of its proper divisors (38762538).

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

22240470 is a wasteful number, since it uses less digits than its factorization.

22240470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105924.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 22240470 is about 4715.9802798570. The cubic root of 22240470 is about 281.2211545725.

Adding to 22240470 its reverse (7404222), we get a palindrome (29644692).

The spelling of 22240470 in words is "twenty-two million, two hundred forty thousand, four hundred seventy".