22922940 has 48 divisors (see below), whose sum is σ = 64971648. Its totient is φ = 6037824.

The previous prime is 22922923. The next prime is 22922947. The reversal of 22922940 is 4922922.

It is a super-2 number, since 2×22922940² = 1050922356487200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 22922898 and 22922907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22922947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2679 + ... + 7281.

It is an arithmetic number, because the mean of its divisors is an integer number (1353576).

Almost surely, 2^22922940 is an apocalyptic number.

22922940 is a gapful number since it is divisible by the number (20) 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 22922940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32485824).

22922940 is an abundant number, since it is smaller than the sum of its proper divisors (42048708).

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

22922940 is a wasteful number, since it uses less digits than its factorization.

22922940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4698 (or 4696 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 22922940 is about 4787.7907222434. The cubic root of 22922940 is about 284.0687362554.

The spelling of 22922940 in words is "twenty-two million, nine hundred twenty-two thousand, nine hundred forty".