402230320 has 40 divisors (see below), whose sum is σ = 938712240. Its totient is φ = 160285440.

The previous prime is 402230291. The next prime is 402230333. The reversal of 402230320 is 23032204.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 402230294 and 402230303.

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, 12175 + ... + 30865.

It is an arithmetic number, because the mean of its divisors is an integer number (23467806).

Almost surely, 2^402230320 is an apocalyptic number.

402230320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402230320 is an abundant number, since it is smaller than the sum of its proper divisors (536481920).

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

402230320 is a wasteful number, since it uses less digits than its factorization.

402230320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18973 (or 18967 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 402230320 is about 20055.6804920701. The cubic root of 402230320 is about 738.1731905526.

Adding to 402230320 its reverse (23032204), we get a palindrome (425262524).

The spelling of 402230320 in words is "four hundred two million, two hundred thirty thousand, three hundred twenty".