240990387 has 8 divisors (see below), whose sum is σ = 350531520. Its totient is φ = 146054760.

The previous prime is 240990359. The next prime is 240990391. The reversal of 240990387 is 783099042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 240990387 - 2²⁰ = 239941811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240990587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3651337 + ... + 3651402.

It is an arithmetic number, because the mean of its divisors is an integer number (43816440).

Almost surely, 2^240990387 is an apocalyptic number.

240990387 is a deficient number, since it is larger than the sum of its proper divisors (109541133).

240990387 is a wasteful number, since it uses less digits than its factorization.

240990387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7302753.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 240990387 is about 15523.8650792900. The cubic root of 240990387 is about 622.3001510047.

The spelling of 240990387 in words is "two hundred forty million, nine hundred ninety thousand, three hundred eighty-seven".