402043995 has 24 divisors (see below), whose sum is σ = 708692400. Its totient is φ = 210787776.

The previous prime is 402043981. The next prime is 402043997. The reversal of 402043995 is 599340204.

It is not a de Polignac number, because 402043995 - 2⁵ = 402043963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402043997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73060 + ... + 78369.

It is an arithmetic number, because the mean of its divisors is an integer number (29528850).

Almost surely, 2^402043995 is an apocalyptic number.

402043995 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

402043995 is a deficient number, since it is larger than the sum of its proper divisors (306648405).

402043995 is a wasteful number, since it uses less digits than its factorization.

402043995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151499 (or 151496 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 402043995 is about 20051.0347613284. The cubic root of 402043995 is about 738.0591917183.

The spelling of 402043995 in words is "four hundred two million, forty-three thousand, nine hundred ninety-five".