402023413 has 16 divisors (see below), whose sum is σ = 466862400. Its totient is φ = 342334080.

The previous prime is 402023393. The next prime is 402023449. The reversal of 402023413 is 314320204.

It is not a de Polignac number, because 402023413 - 2⁵ = 402023381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402023473) 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, 7795 + ... + 29407.

It is an arithmetic number, because the mean of its divisors is an integer number (29178900).

Almost surely, 2^402023413 is an apocalyptic number.

It is an amenable number.

402023413 is a deficient number, since it is larger than the sum of its proper divisors (64838987).

402023413 is a wasteful number, since it uses less digits than its factorization.

402023413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21732.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 402023413 is about 20050.5215144145. The cubic root of 402023413 is about 738.0465969163.

Adding to 402023413 its reverse (314320204), we get a palindrome (716343617).

The spelling of 402023413 in words is "four hundred two million, twenty-three thousand, four hundred thirteen".