240132021 has 16 divisors (see below), whose sum is σ = 339784704. Its totient is φ = 150326784.

The previous prime is 240132019. The next prime is 240132041. The reversal of 240132021 is 120231042.

It is not a de Polignac number, because 240132021 - 2¹ = 240132019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240132041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18156 + ... + 28458.

It is an arithmetic number, because the mean of its divisors is an integer number (21236544).

Almost surely, 2^240132021 is an apocalyptic number.

It is an amenable number.

240132021 is a deficient number, since it is larger than the sum of its proper divisors (99652683).

240132021 is a wasteful number, since it uses less digits than its factorization.

240132021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10780.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 240132021 is about 15496.1937584686. The cubic root of 240132021 is about 621.5604302871.

Adding to 240132021 its reverse (120231042), we get a palindrome (360363063).

The spelling of 240132021 in words is "two hundred forty million, one hundred thirty-two thousand, twenty-one".