2142152240 has 40 divisors (see below), whose sum is σ = 4986094560. Its totient is φ = 855899136.

The previous prime is 2142152239. The next prime is 2142152261. The reversal of 2142152240 is 422512412.

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, 58952 + ... + 88088.

It is an arithmetic number, because the mean of its divisors is an integer number (124652364).

Almost surely, 2^2142152240 is an apocalyptic number.

2142152240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2142152240 is an abundant number, since it is smaller than the sum of its proper divisors (2843942320).

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

2142152240 is a wasteful number, since it uses less digits than its factorization.

2142152240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30069 (or 30063 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2142152240 is about 46283.3905413162. The cubic root of 2142152240 is about 1289.0906075923.

Adding to 2142152240 its reverse (422512412), we get a palindrome (2564664652).

The spelling of 2142152240 in words is "two billion, one hundred forty-two million, one hundred fifty-two thousand, two hundred forty".