402233423 has 4 divisors (see below), whose sum is σ = 404317728. Its totient is φ = 400149120.

The previous prime is 402233417. The next prime is 402233443. The reversal of 402233423 is 324332204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402233423 - 2¹⁸ = 401971279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402233443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1041863 + ... + 1042248.

It is an arithmetic number, because the mean of its divisors is an integer number (101079432).

Almost surely, 2^402233423 is an apocalyptic number.

402233423 is a deficient number, since it is larger than the sum of its proper divisors (2084305).

402233423 is a wasteful number, since it uses less digits than its factorization.

402233423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084304.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 402233423 is about 20055.7578515498. The cubic root of 402233423 is about 738.1750887565.

Adding to 402233423 its reverse (324332204), we get a palindrome (726565627).

The spelling of 402233423 in words is "four hundred two million, two hundred thirty-three thousand, four hundred twenty-three".