22540032478 has 8 divisors (see below), whose sum is σ = 33810710472. Its totient is φ = 11269795656.

The previous prime is 22540032467. The next prime is 22540032497. The reversal of 22540032478 is 87423004522.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 90676 + ... + 230872.

It is an arithmetic number, because the mean of its divisors is an integer number (4226338809).

Almost surely, 2^22540032478 is an apocalyptic number.

22540032478 is a deficient number, since it is larger than the sum of its proper divisors (11270677994).

22540032478 is a wasteful number, since it uses less digits than its factorization.

22540032478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220586.

The product of its (nonzero) digits is 107520, while the sum is 37.

The spelling of 22540032478 in words is "twenty-two billion, five hundred forty million, thirty-two thousand, four hundred seventy-eight".