240281022 has 16 divisors (see below), whose sum is σ = 482351760. Its totient is φ = 79795392.

The previous prime is 240280993. The next prime is 240281029. The reversal of 240281022 is 220182042.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 240281022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240281029) 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, 72823 + ... + 76050.

It is an arithmetic number, because the mean of its divisors is an integer number (30146985).

Almost surely, 2^240281022 is an apocalyptic number.

240281022 is an abundant number, since it is smaller than the sum of its proper divisors (242070738).

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

240281022 is a wasteful number, since it uses less digits than its factorization.

240281022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149147.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 240281022 is about 15501.0006773756. Note that the first 3 decimals coincide. The cubic root of 240281022 is about 621.6889623289.

Subtracting from 240281022 its sum of digits (21), we obtain a square (240281001 = 15501²).

The spelling of 240281022 in words is "two hundred forty million, two hundred eighty-one thousand, twenty-two".