201505240 has 16 divisors (see below), whose sum is σ = 453386880. Its totient is φ = 80602080.

The previous prime is 201505207. The next prime is 201505319. The reversal of 201505240 is 42505102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2518776 + ... + 2518855.

It is an arithmetic number, because the mean of its divisors is an integer number (28336680).

Almost surely, 2^201505240 is an apocalyptic number.

201505240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201505240 is an abundant number, since it is smaller than the sum of its proper divisors (251881640).

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

201505240 is a wasteful number, since it uses less digits than its factorization.

201505240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5037642 (or 5037638 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 201505240 is about 14195.2541365063. The cubic root of 201505240 is about 586.2669985054.

The spelling of 201505240 in words is "two hundred one million, five hundred five thousand, two hundred forty".