402323115 has 16 divisors (see below), whose sum is σ = 664482816. Its totient is φ = 207650400.

The previous prime is 402323111. The next prime is 402323143. The reversal of 402323115 is 511323204.

It is not a de Polignac number, because 402323115 - 2² = 402323111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402323091 and 402323100.

It is not an unprimeable number, because it can be changed into a prime (402323111) 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, 432141 + ... + 433070.

It is an arithmetic number, because the mean of its divisors is an integer number (41530176).

Almost surely, 2^402323115 is an apocalyptic number.

402323115 is a deficient number, since it is larger than the sum of its proper divisors (262159701).

402323115 is a wasteful number, since it uses less digits than its factorization.

402323115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865250.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 402323115 is about 20057.9937929993. The cubic root of 402323115 is about 738.2299519907.

Adding to 402323115 its reverse (511323204), we get a palindrome (913646319).

The spelling of 402323115 in words is "four hundred two million, three hundred twenty-three thousand, one hundred fifteen".