240872387 has 12 divisors (see below), whose sum is σ = 289238976. Its totient is φ = 199800720.

The previous prime is 240872381. The next prime is 240872389. The reversal of 240872387 is 783278042.

It is not a de Polignac number, because 240872387 - 2⁶ = 240872323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240872381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77768 + ... + 80805.

It is an arithmetic number, because the mean of its divisors is an integer number (24103248).

Almost surely, 2^240872387 is an apocalyptic number.

240872387 is a deficient number, since it is larger than the sum of its proper divisors (48366589).

240872387 is a wasteful number, since it uses less digits than its factorization.

240872387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158618 (or 158611 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 240872387 is about 15520.0640140432. The cubic root of 240872387 is about 622.1985654779.

The spelling of 240872387 in words is "two hundred forty million, eight hundred seventy-two thousand, three hundred eighty-seven".