2152532240 has 40 divisors (see below), whose sum is σ = 5008976280. Its totient is φ = 860266496.

The previous prime is 2152532237. The next prime is 2152532251. The reversal of 2152532240 is 422352512.

It can be written as a sum of positive squares in 4 ways, for example, as 1056784 + 2151475456 = 1028^2 + 46384^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86306 + ... + 108414.

It is an arithmetic number, because the mean of its divisors is an integer number (125224407).

Almost surely, 2^2152532240 is an apocalyptic number.

2152532240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2152532240 is an abundant number, since it is smaller than the sum of its proper divisors (2856444040).

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

2152532240 is a wasteful number, since it uses less digits than its factorization.

2152532240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23339 (or 23333 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2152532240 is about 46395.3902882603. The cubic root of 2152532240 is about 1291.1693901167.

Adding to 2152532240 its reverse (422352512), we get a palindrome (2574884752).

The spelling of 2152532240 in words is "two billion, one hundred fifty-two million, five hundred thirty-two thousand, two hundred forty".