2150512040 has 32 divisors (see below), whose sum is σ = 4881482280. Its totient is φ = 852590592.

The previous prime is 2150512031. The next prime is 2150512043. The reversal of 2150512040 is 402150512.

It can be written as a sum of positive squares in 4 ways, for example, as 1607528836 + 542983204 = 40094^2 + 23302^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2150512043) 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, 233369 + ... + 242408.

Almost surely, 2^2150512040 is an apocalyptic number.

2150512040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2150512040 is an abundant number, since it is smaller than the sum of its proper divisors (2730970240).

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

2150512040 is a wasteful number, since it uses less digits than its factorization.

2150512040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475901 (or 475897 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2150512040 is about 46373.6136180911. The cubic root of 2150512040 is about 1290.7653331646.

Adding to 2150512040 its reverse (402150512), we get a palindrome (2552662552).

The spelling of 2150512040 in words is "two billion, one hundred fifty million, five hundred twelve thousand, forty".