2398171140 has 144 divisors (see below), whose sum is σ = 7367383296. Its totient is φ = 631411200.

The previous prime is 2398171123. The next prime is 2398171157. The reversal of 2398171140 is 411718932.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2398171123) and next prime (2398171157).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2398171095 and 2398171104.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8849205 + ... + 8849475.

It is an arithmetic number, because the mean of its divisors is an integer number (51162384).

Almost surely, 2^2398171140 is an apocalyptic number.

2398171140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2398171140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3683691648).

2398171140 is an abundant number, since it is smaller than the sum of its proper divisors (4969212156).

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

2398171140 is a wasteful number, since it uses less digits than its factorization.

2398171140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 2398171140 is about 48971.1255741585. The cubic root of 2398171140 is about 1338.5257306480.

The spelling of 2398171140 in words is "two billion, three hundred ninety-eight million, one hundred seventy-one thousand, one hundred forty".