240790 has 24 divisors (see below), whose sum is σ = 478800. Its totient is φ = 87120.

The previous prime is 240769. The next prime is 240797. The reversal of 240790 is 97042.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1111 + ... + 1309.

It is an arithmetic number, because the mean of its divisors is an integer number (19950).

2²⁴⁰⁷⁹⁰ is an apocalyptic number.

240790 is a deficient number, since it is larger than the sum of its proper divisors (238010).

240790 is a wasteful number, since it uses less digits than its factorization.

240790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 240790 is about 490.7035765103. The cubic root of 240790 is about 62.2127619310.

The spelling of 240790 in words is "two hundred forty thousand, seven hundred ninety".