240401232 has 30 divisors (see below), whose sum is σ = 672789962. Its totient is φ = 80133696.

The previous prime is 240401207. The next prime is 240401263. The reversal of 240401232 is 232104042.

240401232 is a `hidden beast` number, since 240 + 401 + 23 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 132158016 + 108243216 = 11496^2 + 10404^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 834583 + ... + 834870.

Almost surely, 2^240401232 is an apocalyptic number.

It is an amenable number.

240401232 is an abundant number, since it is smaller than the sum of its proper divisors (432388730).

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

240401232 is a wasteful number, since it uses less digits than its factorization.

240401232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669467 (or 1669458 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 240401232 is about 15504.8776841354. The cubic root of 240401232 is about 621.7926198022.

Adding to 240401232 its reverse (232104042), we get a palindrome (472505274).

The spelling of 240401232 in words is "two hundred forty million, four hundred one thousand, two hundred thirty-two".