1097818238 has 24 divisors (see below), whose sum is σ = 1834863744. Its totient is φ = 492164640.

The previous prime is 1097818237. The next prime is 1097818279. The reversal of 1097818238 is 8328187901.

It is a junction number, because it is equal to n+sod(n) for n = 1097818192 and 1097818201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097818237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13406 + ... + 48737.

It is an arithmetic number, because the mean of its divisors is an integer number (76452656).

Almost surely, 2^1097818238 is an apocalyptic number.

1097818238 is a deficient number, since it is larger than the sum of its proper divisors (737045506).

1097818238 is a wasteful number, since it uses less digits than its factorization.

1097818238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62240 (or 62229 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 1097818238 is about 33133.3402783360. The cubic root of 1097818238 is about 1031.5971820670.

The spelling of 1097818238 in words is "one billion, ninety-seven million, eight hundred eighteen thousand, two hundred thirty-eight".