402475331 has 4 divisors (see below), whose sum is σ = 404801952. Its totient is φ = 400148712.

The previous prime is 402475303. The next prime is 402475417. The reversal of 402475331 is 133574204.

It is a happy number.

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 402475331 - 2⁶ = 402475267 is a prime.

It is a super-2 number, since 2×402475331² = 323972784127119122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402475294 and 402475303.

It is not an unprimeable number, because it can be changed into a prime (402475301) 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 3 ways as a sum of consecutive naturals, for example, 1163051 + ... + 1163396.

It is an arithmetic number, because the mean of its divisors is an integer number (101200488).

Almost surely, 2^402475331 is an apocalyptic number.

402475331 is a deficient number, since it is larger than the sum of its proper divisors (2326621).

402475331 is a wasteful number, since it uses less digits than its factorization.

402475331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326620.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 402475331 is about 20061.7878315967. The cubic root of 402475331 is about 738.3230415479.

The spelling of 402475331 in words is "four hundred two million, four hundred seventy-five thousand, three hundred thirty-one".