240402940 has 24 divisors (see below), whose sum is σ = 506821392. Its totient is φ = 95784960.

The previous prime is 240402937. The next prime is 240402959. The reversal of 240402940 is 49204042.

240402940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 18246 + ... + 28525.

It is an arithmetic number, because the mean of its divisors is an integer number (21117558).

Almost surely, 2^240402940 is an apocalyptic number.

240402940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240402940 is an abundant number, since it is smaller than the sum of its proper divisors (266418452).

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

240402940 is a wasteful number, since it uses less digits than its factorization.

240402940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47037 (or 47035 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 240402940 is about 15504.9327634789. The cubic root of 240402940 is about 621.7940923672.

Adding to 240402940 its reverse (49204042), we get a palindrome (289606982).

The spelling of 240402940 in words is "two hundred forty million, four hundred two thousand, nine hundred forty".