402240332 has 48 divisors (see below), whose sum is σ = 806571360. Its totient is φ = 173878272.

The previous prime is 402240269. The next prime is 402240341. The reversal of 402240332 is 233042204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201443 + ... + 203429.

It is an arithmetic number, because the mean of its divisors is an integer number (16803570).

Almost surely, 2^402240332 is an apocalyptic number.

It is an amenable number.

402240332 is an abundant number, since it is smaller than the sum of its proper divisors (404331028).

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

402240332 is a wasteful number, since it uses less digits than its factorization.

402240332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250 (or 2248 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 402240332 is about 20055.9300956101. The cubic root of 402240332 is about 738.1793151768.

Adding to 402240332 its reverse (233042204), we get a palindrome (635282536).

The spelling of 402240332 in words is "four hundred two million, two hundred forty thousand, three hundred thirty-two".