402423124 has 24 divisors (see below), whose sum is σ = 714844928. Its totient is φ = 198201600.

The previous prime is 402423089. The next prime is 402423127. The reversal of 402423124 is 421324204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 402423095 and 402423104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402423127) 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 7 ways as a sum of consecutive naturals, for example, 84199 + ... + 88849.

Almost surely, 2^402423124 is an apocalyptic number.

It is an amenable number.

402423124 is a deficient number, since it is larger than the sum of its proper divisors (312421804).

402423124 is a wasteful number, since it uses less digits than its factorization.

402423124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4975 (or 4973 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 402423124 is about 20060.4866341771. The cubic root of 402423124 is about 738.2911163632.

Adding to 402423124 its reverse (421324204), we get a palindrome (823747328).

The spelling of 402423124 in words is "four hundred two million, four hundred twenty-three thousand, one hundred twenty-four".