2152503240 has 32 divisors (see below), whose sum is σ = 6457510080. Its totient is φ = 574000832.

The previous prime is 2152503233. The next prime is 2152503253. The reversal of 2152503240 is 423052512.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2152503240.

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, 8968644 + ... + 8968883.

It is an arithmetic number, because the mean of its divisors is an integer number (201797190).

Almost surely, 2^2152503240 is an apocalyptic number.

2152503240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2152503240 is an abundant number, since it is smaller than the sum of its proper divisors (4305006840).

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

2152503240 is a wasteful number, since it uses less digits than its factorization.

2152503240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17937541 (or 17937537 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2152503240 is about 46395.0777561586. The cubic root of 2152503240 is about 1291.1635916622.

Adding to 2152503240 its reverse (423052512), we get a palindrome (2575555752).

The spelling of 2152503240 in words is "two billion, one hundred fifty-two million, five hundred three thousand, two hundred forty".