1097220258 has 24 divisors (see below), whose sum is σ = 2378381148. Its totient is φ = 365575392.

The previous prime is 1097220199. The next prime is 1097220281. The reversal of 1097220258 is 8520227901.

It can be written as a sum of positive squares in 2 ways, for example, as 727542729 + 369677529 = 26973^2 + 19227^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31360 + ... + 56372.

Almost surely, 2^1097220258 is an apocalyptic number.

1097220258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1097220258 is an abundant number, since it is smaller than the sum of its proper divisors (1281160890).

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

1097220258 is a wasteful number, since it uses less digits than its factorization.

1097220258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27458 (or 27455 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1097220258 is about 33124.3152080160. The cubic root of 1097220258 is about 1031.4098448865.

The spelling of 1097220258 in words is "one billion, ninety-seven million, two hundred twenty thousand, two hundred fifty-eight".