240890 has 32 divisors (see below), whose sum is σ = 498960. Its totient is φ = 82944.

The previous prime is 240883. The next prime is 240893. The reversal of 240890 is 98042.

240890 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 116281 + 124609 = 341^2 + 353^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240893) 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, 2156 + ... + 2264.

2²⁴⁰⁸⁹⁰ is an apocalyptic number.

240890 is an abundant number, since it is smaller than the sum of its proper divisors (258070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240890 is a wasteful number, since it uses less digits than its factorization.

240890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 240890 is about 490.8054604423. The cubic root of 240890 is about 62.2213730515.

The spelling of 240890 in words is "two hundred forty thousand, eight hundred ninety".