402023210 has 32 divisors (see below), whose sum is σ = 756404352. Its totient is φ = 153552960.

The previous prime is 402023207. The next prime is 402023213. The reversal of 402023210 is 12320204.

It is an interprime number because it is at equal distance from previous prime (402023207) and next prime (402023213).

It is a super-2 number, since 2×402023210² = 323245322757408200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402023213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179900 + ... + 182120.

It is an arithmetic number, because the mean of its divisors is an integer number (23637636).

Almost surely, 2^402023210 is an apocalyptic number.

402023210 is a deficient number, since it is larger than the sum of its proper divisors (354381142).

402023210 is a wasteful number, since it uses less digits than its factorization.

402023210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 402023210 is about 20050.5164522014. The cubic root of 402023210 is about 738.0464726918.

Adding to 402023210 its reverse (12320204), we get a palindrome (414343414).

The spelling of 402023210 in words is "four hundred two million, twenty-three thousand, two hundred ten".