22840464 has 40 divisors (see below), whose sum is σ = 59540832. Its totient is φ = 7544320.

The previous prime is 22840457. The next prime is 22840471. The reversal of 22840464 is 46404822.

It is an interprime number because it is at equal distance from previous prime (22840457) and next prime (22840471).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3319 + ... + 7529.

Almost surely, 2^22840464 is an apocalyptic number.

22840464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22840464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29770416).

22840464 is an abundant number, since it is smaller than the sum of its proper divisors (36700368).

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

22840464 is a wasteful number, since it uses less digits than its factorization.

22840464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335 (or 4329 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 22840464 is about 4779.1698023820. The cubic root of 22840464 is about 283.7276367841.

The spelling of 22840464 in words is "twenty-two million, eight hundred forty thousand, four hundred sixty-four".