22347940 has 24 divisors (see below), whose sum is σ = 47218752. Its totient is φ = 8884320.

The previous prime is 22347937. The next prime is 22347947. The reversal of 22347940 is 4974322.

It is a super-3 number, since 3×22347940³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22347947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6 + ... + 6685.

It is an arithmetic number, because the mean of its divisors is an integer number (1967448).

Almost surely, 2^22347940 is an apocalyptic number.

22347940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22347940 is an abundant number, since it is smaller than the sum of its proper divisors (24870812).

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

22347940 is a wasteful number, since it uses less digits than its factorization.

22347940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6867 (or 6865 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 22347940 is about 4727.3607858931. The cubic root of 22347940 is about 281.6733975182.

The spelling of 22347940 in words is "twenty-two million, three hundred forty-seven thousand, nine hundred forty".