22870040 has 16 divisors (see below), whose sum is σ = 51457680. Its totient is φ = 9148000.

The previous prime is 22870039. The next prime is 22870093. The reversal of 22870040 is 4007822.

It is a junction number, because it is equal to n+sod(n) for n = 22869988 and 22870015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285836 + ... + 285915.

It is an arithmetic number, because the mean of its divisors is an integer number (3216105).

Almost surely, 2^22870040 is an apocalyptic number.

22870040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22870040 is an abundant number, since it is smaller than the sum of its proper divisors (28587640).

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

22870040 is a wasteful number, since it uses less digits than its factorization.

22870040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571762 (or 571758 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 22870040 is about 4782.2630626096. The cubic root of 22870040 is about 283.8500497838.

Adding to 22870040 its reverse (4007822), we get a palindrome (26877862).

The spelling of 22870040 in words is "twenty-two million, eight hundred seventy thousand, forty".