22292946 has 48 divisors (see below), whose sum is σ = 53149824. Its totient is φ = 6710112.

The previous prime is 22292939. The next prime is 22292969. The reversal of 22292946 is 64929222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22292946.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 9985 + ... + 12011.

It is an arithmetic number, because the mean of its divisors is an integer number (1107288).

Almost surely, 2^22292946 is an apocalyptic number.

22292946 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22292946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26574912).

22292946 is an abundant number, since it is smaller than the sum of its proper divisors (30856878).

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

22292946 is a wasteful number, since it uses less digits than its factorization.

22292946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095 (or 2092 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 22292946 is about 4721.5406383934. The cubic root of 22292946 is about 281.4421596430.

The spelling of 22292946 in words is "twenty-two million, two hundred ninety-two thousand, nine hundred forty-six".