22294470 has 32 divisors (see below), whose sum is σ = 58371840. Its totient is φ = 5404640.

The previous prime is 22294439. The next prime is 22294477. The reversal of 22294470 is 7449222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22294477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33450 + ... + 34109.

It is an arithmetic number, because the mean of its divisors is an integer number (1824120).

Almost surely, 2^22294470 is an apocalyptic number.

22294470 is an abundant number, since it is smaller than the sum of its proper divisors (36077370).

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

22294470 is a wasteful number, since it uses less digits than its factorization.

22294470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67580.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 22294470 is about 4721.7020236351. The cubic root of 22294470 is about 281.4485728537.

It can be divided in two parts, 22 and 294470, that added together give a palindrome (294492).

The spelling of 22294470 in words is "twenty-two million, two hundred ninety-four thousand, four hundred seventy".