402423004 has 12 divisors (see below), whose sum is σ = 705323304. Its totient is φ = 200902064.

The previous prime is 402422947. The next prime is 402423037. The reversal of 402423004 is 400324204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74422 + ... + 79645.

It is an arithmetic number, because the mean of its divisors is an integer number (58776942).

Almost surely, 2^402423004 is an apocalyptic number.

It is an amenable number.

402423004 is a deficient number, since it is larger than the sum of its proper divisors (302900300).

402423004 is a wasteful number, since it uses less digits than its factorization.

402423004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154724 (or 154722 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 402423004 is about 20060.4836432226. The cubic root of 402423004 is about 738.2910429787.

Adding to 402423004 its reverse (400324204), we get a palindrome (802747208).

It can be divided in two parts, 4024 and 23004, that added together give a triangular number (27028 = T₂₃₂).

The spelling of 402423004 in words is "four hundred two million, four hundred twenty-three thousand, four".