402432303 has 32 divisors (see below), whose sum is σ = 661602816. Its totient is φ = 211886208.

The previous prime is 402432269. The next prime is 402432307. The reversal of 402432303 is 303234204.

It is not a de Polignac number, because 402432303 - 2¹² = 402428207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 402432303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402432307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210076 + ... + 211982.

It is an arithmetic number, because the mean of its divisors is an integer number (20675088).

Almost surely, 2^402432303 is an apocalyptic number.

402432303 is a deficient number, since it is larger than the sum of its proper divisors (259170513).

402432303 is a wasteful number, since it uses less digits than its factorization.

402432303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 402432303 is about 20060.7154159566. The cubic root of 402432303 is about 738.2967296280.

Adding to 402432303 its reverse (303234204), we get a palindrome (705666507).

The spelling of 402432303 in words is "four hundred two million, four hundred thirty-two thousand, three hundred three".