240022236 has 12 divisors (see below), whose sum is σ = 560051912. Its totient is φ = 80007408.

The previous prime is 240022229. The next prime is 240022247. The reversal of 240022236 is 632220042.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×240022236² = 115221347548879392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10000915 + ... + 10000938.

Almost surely, 2^240022236 is an apocalyptic number.

It is an amenable number.

240022236 is an abundant number, since it is smaller than the sum of its proper divisors (320029676).

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

240022236 is a wasteful number, since it uses less digits than its factorization.

240022236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20001860 (or 20001858 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 240022236 is about 15492.6510320216. The cubic root of 240022236 is about 621.4656929375.

Adding to 240022236 its reverse (632220042), we get a palindrome (872242278).

The spelling of 240022236 in words is "two hundred forty million, twenty-two thousand, two hundred thirty-six".