402240339 has 6 divisors (see below), whose sum is σ = 581013836. Its totient is φ = 268160220.

The previous prime is 402240269. The next prime is 402240341. The reversal of 402240339 is 933042204.

It is a happy number.

It is not a de Polignac number, because 402240339 - 2⁷ = 402240211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402240359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22346677 + ... + 22346694.

Almost surely, 2^402240339 is an apocalyptic number.

402240339 is a deficient number, since it is larger than the sum of its proper divisors (178773497).

402240339 is a wasteful number, since it uses less digits than its factorization.

402240339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44693377 (or 44693374 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 402240339 is about 20055.9302701221. The cubic root of 402240339 is about 738.1793194588.

The spelling of 402240339 in words is "four hundred two million, two hundred forty thousand, three hundred thirty-nine".