1097259450 has 72 divisors (see below), whose sum is σ = 3165502752. Its totient is φ = 250800480.

The previous prime is 1097259437. The next prime is 1097259461. The reversal of 1097259450 is 549527901.

It is a super-2 number, since 2×1097259450² = 2407956601228605000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 67294 + ... + 81993.

It is an arithmetic number, because the mean of its divisors is an integer number (43965316).

Almost surely, 2^1097259450 is an apocalyptic number.

1097259450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1097259450 is an abundant number, since it is smaller than the sum of its proper divisors (2068243302).

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

1097259450 is a wasteful number, since it uses less digits than its factorization.

1097259450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149316 (or 149304 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 42.

The square root of 1097259450 is about 33124.9067923217. The cubic root of 1097259450 is about 1031.4221251718.

The spelling of 1097259450 in words is "one billion, ninety-seven million, two hundred fifty-nine thousand, four hundred fifty".