402023303 has 4 divisors (see below), whose sum is σ = 438570888. Its totient is φ = 365475720.

The previous prime is 402023269. The next prime is 402023333. The reversal of 402023303 is 303320204.

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 402023303 - 2⁶ = 402023239 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 (402023333) 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, 18273776 + ... + 18273797.

It is an arithmetic number, because the mean of its divisors is an integer number (109642722).

Almost surely, 2^402023303 is an apocalyptic number.

402023303 is a deficient number, since it is larger than the sum of its proper divisors (36547585).

402023303 is a wasteful number, since it uses less digits than its factorization.

402023303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36547584.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 402023303 is about 20050.5187713435. The cubic root of 402023303 is about 738.0465296026.

Adding to 402023303 its reverse (303320204), we get a palindrome (705343507).

The spelling of 402023303 in words is "four hundred two million, twenty-three thousand, three hundred three".