240987407 has 4 divisors (see below), whose sum is σ = 241154040. Its totient is φ = 240820776.

The previous prime is 240987389. The next prime is 240987413. The reversal of 240987407 is 704789042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240987407 - 2¹⁶ = 240921871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240987107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81128 + ... + 84045.

It is an arithmetic number, because the mean of its divisors is an integer number (60288510).

Almost surely, 2^240987407 is an apocalyptic number.

240987407 is a deficient number, since it is larger than the sum of its proper divisors (166633).

240987407 is a wasteful number, since it uses less digits than its factorization.

240987407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166632.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 240987407 is about 15523.7690977417. The cubic root of 240987407 is about 622.2975859479.

The spelling of 240987407 in words is "two hundred forty million, nine hundred eighty-seven thousand, four hundred seven".