2157735460 has 24 divisors (see below), whose sum is σ = 4593319416. Its totient is φ = 851270400.

The previous prime is 2157735457. The next prime is 2157735467. The reversal of 2157735460 is 645377512.

It can be written as a sum of positive squares in 4 ways, for example, as 876096 + 2156859364 = 936^2 + 46442^2 .

It is not an unprimeable number, because it can be changed into a prime (2157735467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737491 + ... + 740410.

It is an arithmetic number, because the mean of its divisors is an integer number (191388309).

Almost surely, 2^2157735460 is an apocalyptic number.

2157735460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2157735460 is an abundant number, since it is smaller than the sum of its proper divisors (2435583956).

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

2157735460 is a wasteful number, since it uses less digits than its factorization.

2157735460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477983 (or 1477981 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 2157735460 is about 46451.4311943131. The cubic root of 2157735460 is about 1292.2089149911.

The spelling of 2157735460 in words is "two billion, one hundred fifty-seven million, seven hundred thirty-five thousand, four hundred sixty".