22129473 has 16 divisors (see below), whose sum is σ = 31026816. Its totient is φ = 14002560.

The previous prime is 22129423. The next prime is 22129501. The reversal of 22129473 is 37492122.

It is not a de Polignac number, because 22129473 - 2⁶ = 22129409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22129473.

It is not an unprimeable number, because it can be changed into a prime (22129423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8283 + ... + 10623.

It is an arithmetic number, because the mean of its divisors is an integer number (1939176).

Almost surely, 2^22129473 is an apocalyptic number.

22129473 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22129473 is a deficient number, since it is larger than the sum of its proper divisors (8897343).

22129473 is a wasteful number, since it uses less digits than its factorization.

22129473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504.

The product of its digits is 6048, while the sum is 30.

The square root of 22129473 is about 4704.1973810630. The cubic root of 22129473 is about 280.7525377164.

The spelling of 22129473 in words is "twenty-two million, one hundred twenty-nine thousand, four hundred seventy-three".