1501640252 has 24 divisors (see below), whose sum is σ = 3076533600. Its totient is φ = 627863040.

The previous prime is 1501640197. The next prime is 1501640297. The reversal of 1501640252 is 2520461051.

It is a congruent number.

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, 652877 + ... + 655172.

It is an arithmetic number, because the mean of its divisors is an integer number (128188900).

Almost surely, 2^1501640252 is an apocalyptic number.

It is an amenable number.

1501640252 is an abundant number, since it is smaller than the sum of its proper divisors (1574893348).

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

1501640252 is a wasteful number, since it uses less digits than its factorization.

1501640252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308101 (or 1308099 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1501640252 is about 38751.0032386260. The cubic root of 1501640252 is about 1145.1313394084.

The spelling of 1501640252 in words is "one billion, five hundred one million, six hundred forty thousand, two hundred fifty-two".