402023000 has 32 divisors (see below), whose sum is σ = 940736160. Its totient is φ = 160808800.

The previous prime is 402022949. The next prime is 402023059. The reversal of 402023000 is 320204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200012 + ... + 202011.

It is an arithmetic number, because the mean of its divisors is an integer number (29398005).

Almost surely, 2^402023000 is an apocalyptic number.

402023000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402023000 is an abundant number, since it is smaller than the sum of its proper divisors (538713160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402023000 is a wasteful number, since it uses less digits than its factorization.

402023000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402044 (or 402030 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 402023000 is about 20050.5112154279. The cubic root of 402023000 is about 738.0463441837.

Adding to 402023000 its reverse (320204), we get a palindrome (402343204).

The spelling of 402023000 in words is "four hundred two million, twenty-three thousand".