2398140553 has 4 divisors (see below), whose sum is σ = 2456631828. Its totient is φ = 2339649280.

The previous prime is 2398140527. The next prime is 2398140559. The reversal of 2398140553 is 3550418932.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1117431184 + 1280709369 = 33428^2 + 35787^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2398140553 is a prime.

It is a super-2 number, since 2×2398140553² = 11502156223886291618, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2398140559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29245576 + ... + 29245657.

It is an arithmetic number, because the mean of its divisors is an integer number (614157957).

Almost surely, 2^2398140553 is an apocalyptic number.

It is an amenable number.

2398140553 is a deficient number, since it is larger than the sum of its proper divisors (58491275).

2398140553 is an equidigital number, since it uses as much as digits as its factorization.

2398140553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58491274.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 2398140553 is about 48970.8132768897. The cubic root of 2398140553 is about 1338.5200399698.

The spelling of 2398140553 in words is "two billion, three hundred ninety-eight million, one hundred forty thousand, five hundred fifty-three".