19265022240 has 48 divisors (see below), whose sum is σ = 60684821568. Its totient is φ = 5137339136.

The previous prime is 19265022167. The next prime is 19265022263. The reversal of 19265022240 is 4222056291.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×19265022240² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20067252 + ... + 20068211.

It is an arithmetic number, because the mean of its divisors is an integer number (1264267116).

Almost surely, 2^19265022240 is an apocalyptic number.

19265022240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19265022240 is an abundant number, since it is smaller than the sum of its proper divisors (41419799328).

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

19265022240 is a wasteful number, since it uses less digits than its factorization.

19265022240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40135481 (or 40135473 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 19265022240 in words is "nineteen billion, two hundred sixty-five million, twenty-two thousand, two hundred forty".