22716420 has 48 divisors (see below), whose sum is σ = 67350528. Its totient is φ = 5701120.

The previous prime is 22716401. The next prime is 22716431. The reversal of 22716420 is 2461722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10116 + ... + 12155.

It is an arithmetic number, because the mean of its divisors is an integer number (1403136).

Almost surely, 2^22716420 is an apocalyptic number.

22716420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22716420 is an abundant number, since it is smaller than the sum of its proper divisors (44634108).

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

22716420 is a wasteful number, since it uses less digits than its factorization.

22716420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22300 (or 22298 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 22716420 is about 4766.1745666729. The cubic root of 22716420 is about 283.2130731461.

The spelling of 22716420 in words is "twenty-two million, seven hundred sixteen thousand, four hundred twenty".