240531404 has 12 divisors (see below), whose sum is σ = 421591128. Its totient is φ = 120076800.

The previous prime is 240531353. The next prime is 240531463. The reversal of 240531404 is 404135042.

It is a super-2 number, since 2×240531404² = 115710712620422432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 240531404.

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, 44342 + ... + 49469.

It is an arithmetic number, because the mean of its divisors is an integer number (35132594).

Almost surely, 2^240531404 is an apocalyptic number.

It is an amenable number.

240531404 is a deficient number, since it is larger than the sum of its proper divisors (181059724).

240531404 is a wasteful number, since it uses less digits than its factorization.

240531404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94456 (or 94454 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 240531404 is about 15509.0748918174. The cubic root of 240531404 is about 621.9048285786.

Adding to 240531404 its reverse (404135042), we get a palindrome (644666446).

The spelling of 240531404 in words is "two hundred forty million, five hundred thirty-one thousand, four hundred four".