22690428540 has 48 divisors (see below), whose sum is σ = 68420371488. Its totient is φ = 5585336064.

The previous prime is 22690428493. The next prime is 22690428601. The reversal of 22690428540 is 4582409622.

It is a junction number, because it is equal to n+sod(n) for n = 22690428492 and 22690428501.

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, 14544367 + ... + 14545926.

It is an arithmetic number, because the mean of its divisors is an integer number (1425424406).

Almost surely, 2^22690428540 is an apocalyptic number.

22690428540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22690428540 is an abundant number, since it is smaller than the sum of its proper divisors (45729942948).

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

22690428540 is a wasteful number, since it uses less digits than its factorization.

22690428540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29090318 (or 29090316 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 22690428540 in words is "twenty-two billion, six hundred ninety million, four hundred twenty-eight thousand, five hundred forty".