403023000 has 64 divisors (see below), whose sum is σ = 1257441120. Its totient is φ = 107472000.

The previous prime is 403022957. The next prime is 403023001. The reversal of 403023000 is 320304.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403023001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64171 + ... + 70170.

Almost surely, 2^403023000 is an apocalyptic number.

403023000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403023000 is an abundant number, since it is smaller than the sum of its proper divisors (854418120).

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

403023000 is a wasteful number, since it uses less digits than its factorization.

403023000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134365 (or 134351 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 403023000 is about 20075.4327475151. The cubic root of 403023000 is about 738.6577812115.

Adding to 403023000 its reverse (320304), we get a palindrome (403343304).

The spelling of 403023000 in words is "four hundred three million, twenty-three thousand".