22340528 has 40 divisors (see below), whose sum is σ = 49797408. Its totient is φ = 9510912.

The previous prime is 22340503. The next prime is 22340543. The reversal of 22340528 is 82504322.

It is a junction number, because it is equal to n+sod(n) for n = 22340497 and 22340506.

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, 18800 + ... + 19952.

Almost surely, 2^22340528 is an apocalyptic number.

22340528 is a gapful number since it is divisible by the number (28) 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 22340528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24898704).

22340528 is an abundant number, since it is smaller than the sum of its proper divisors (27456880).

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

22340528 is a wasteful number, since it uses less digits than its factorization.

22340528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1335 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 22340528 is about 4726.5767739454. The cubic root of 22340528 is about 281.6422537964.

The spelling of 22340528 in words is "twenty-two million, three hundred forty thousand, five hundred twenty-eight".