240221612 has 24 divisors (see below), whose sum is σ = 435739920. Its totient is φ = 115784640.

The previous prime is 240221609. The next prime is 240221629. The reversal of 240221612 is 216122042.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8687 + ... + 23577.

It is an arithmetic number, because the mean of its divisors is an integer number (18155830).

Almost surely, 2^240221612 is an apocalyptic number.

It is an amenable number.

240221612 is a deficient number, since it is larger than the sum of its proper divisors (195518308).

240221612 is a wasteful number, since it uses less digits than its factorization.

240221612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15041 (or 15039 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 240221612 is about 15499.0842310118. The cubic root of 240221612 is about 621.6377201273.

Adding to 240221612 its reverse (216122042), we get a palindrome (456343654).

The spelling of 240221612 in words is "two hundred forty million, two hundred twenty-one thousand, six hundred twelve".