240121204 has 12 divisors (see below), whose sum is σ = 420346528. Its totient is φ = 120022200.

The previous prime is 240121187. The next prime is 240121207. The reversal of 240121204 is 402121042.

It is a super-2 number, since 2×240121204² = 115316385220819232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240121207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8089 + ... + 23359.

Almost surely, 2^240121204 is an apocalyptic number.

It is an amenable number.

240121204 is a deficient number, since it is larger than the sum of its proper divisors (180225324).

240121204 is a wasteful number, since it uses less digits than its factorization.

240121204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19206 (or 19204 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 240121204 is about 15495.8447333471. The cubic root of 240121204 is about 621.5510971987.

Adding to 240121204 its reverse (402121042), we get a palindrome (642242246).

The spelling of 240121204 in words is "two hundred forty million, one hundred twenty-one thousand, two hundred four".