402430023 has 12 divisors (see below), whose sum is σ = 581594208. Its totient is φ = 268145280.

The previous prime is 402429971. The next prime is 402430033. The reversal of 402430023 is 320034204.

It is not a de Polignac number, because 402430023 - 2⁶ = 402429959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402429978 and 402430005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402430033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7986 + ... + 29472.

It is an arithmetic number, because the mean of its divisors is an integer number (48466184).

Almost surely, 2^402430023 is an apocalyptic number.

402430023 is a deficient number, since it is larger than the sum of its proper divisors (179164185).

402430023 is a wasteful number, since it uses less digits than its factorization.

402430023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23574 (or 23571 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 402430023 is about 20060.6585883914. The cubic root of 402430023 is about 738.2953353399.

Adding to 402430023 its reverse (320034204), we get a palindrome (722464227).

The spelling of 402430023 in words is "four hundred two million, four hundred thirty thousand, twenty-three".