22927440 has 40 divisors (see below), whose sum is σ = 71075808. Its totient is φ = 6113920.

The previous prime is 22927439. The next prime is 22927447. The reversal of 22927440 is 4472922.

It is a tau number, because it is divible by the number of its divisors (40).

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 = 22927398 and 22927407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22927447) 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, 47526 + ... + 48005.

Almost surely, 2^22927440 is an apocalyptic number.

22927440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22927440 is an abundant number, since it is smaller than the sum of its proper divisors (48148368).

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

22927440 is a wasteful number, since it uses less digits than its factorization.

22927440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95547 (or 95541 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 22927440 is about 4788.2606445347. The cubic root of 22927440 is about 284.0873235407.

The spelling of 22927440 in words is "twenty-two million, nine hundred twenty-seven thousand, four hundred forty".