240402402 has 48 divisors (see below), whose sum is σ = 567216000. Its totient is φ = 73295712.

The previous prime is 240402401. The next prime is 240402433. The reversal of 240402402 is 204204042.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (240402401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2202 + ... + 22037.

It is an arithmetic number, because the mean of its divisors is an integer number (11817000).

Almost surely, 2^240402402 is an apocalyptic number.

240402402 is an abundant number, since it is smaller than the sum of its proper divisors (326813598).

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

240402402 is a wasteful number, since it uses less digits than its factorization.

240402402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24295 (or 24292 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 240402402 is about 15504.9154141517. The cubic root of 240402402 is about 621.7936285272.

Adding to 240402402 its reverse (204204042), we get a palindrome (444606444).

The spelling of 240402402 in words is "two hundred forty million, four hundred two thousand, four hundred two".