2152204040 has 32 divisors (see below), whose sum is σ = 5534239680. Its totient is φ = 737898432.

The previous prime is 2152204007. The next prime is 2152204069. The reversal of 2152204040 is 404022512.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3842942 + ... + 3843501.

It is an arithmetic number, because the mean of its divisors is an integer number (172944990).

Almost surely, 2^2152204040 is an apocalyptic number.

2152204040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2152204040 is an abundant number, since it is smaller than the sum of its proper divisors (3382035640).

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

2152204040 is a wasteful number, since it uses less digits than its factorization.

2152204040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7686461 (or 7686457 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2152204040 is about 46391.8531641063. The cubic root of 2152204040 is about 1291.1037645672.

Adding to 2152204040 its reverse (404022512), we get a palindrome (2556226552).

The spelling of 2152204040 in words is "two billion, one hundred fifty-two million, two hundred four thousand, forty".