22247474 has 8 divisors (see below), whose sum is σ = 33495168. Its totient is φ = 11082420.

The previous prime is 22247453. The next prime is 22247507. The reversal of 22247474 is 47474222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22247474.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19982 + ... + 21065.

It is an arithmetic number, because the mean of its divisors is an integer number (4186896).

Almost surely, 2^22247474 is an apocalyptic number.

22247474 is a deficient number, since it is larger than the sum of its proper divisors (11247694).

22247474 is a wasteful number, since it uses less digits than its factorization.

22247474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41320.

The product of its digits is 25088, while the sum is 32.

The square root of 22247474 is about 4716.7228029639. The cubic root of 22247474 is about 281.2506723276.

It can be divided in two parts, 2224747 and 4, that multiplied together give a palindrome (8898988).

The spelling of 22247474 in words is "twenty-two million, two hundred forty-seven thousand, four hundred seventy-four".