1097226440 has 32 divisors (see below), whose sum is σ = 2598696000. Its totient is φ = 415790784.

The previous prime is 1097226413. The next prime is 1097226451. The reversal of 1097226440 is 446227901.

It is a self number, because there is not a number n which added to its sum of digits gives 1097226440.

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, 721100 + ... + 722619.

It is an arithmetic number, because the mean of its divisors is an integer number (81209250).

Almost surely, 2^1097226440 is an apocalyptic number.

1097226440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1097226440 is an abundant number, since it is smaller than the sum of its proper divisors (1501469560).

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

1097226440 is a wasteful number, since it uses less digits than its factorization.

1097226440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443749 (or 1443745 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1097226440 is about 33124.4085230212. The cubic root of 1097226440 is about 1031.4117819524.

The spelling of 1097226440 in words is "one billion, ninety-seven million, two hundred twenty-six thousand, four hundred forty".