1098397269 has 12 divisors (see below), whose sum is σ = 1655555616. Its totient is φ = 700427112.

The previous prime is 1098397259. The next prime is 1098397283. The reversal of 1098397269 is 9627938901.

It is not a de Polignac number, because 1098397269 - 2¹³ = 1098389077 is a prime.

It is a super-2 number, since 2×1098397269² = 2412953121093316722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098397259) 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, 2652927 + ... + 2653340.

It is an arithmetic number, because the mean of its divisors is an integer number (137962968).

Almost surely, 2^1098397269 is an apocalyptic number.

It is an amenable number.

1098397269 is a deficient number, since it is larger than the sum of its proper divisors (557158347).

1098397269 is a wasteful number, since it uses less digits than its factorization.

1098397269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5306296 (or 5306293 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 1098397269 is about 33142.0770169885. The cubic root of 1098397269 is about 1031.7785180236.

The spelling of 1098397269 in words is "one billion, ninety-eight million, three hundred ninety-seven thousand, two hundred sixty-nine".