402271867 has 16 divisors (see below), whose sum is σ = 434421792. Its totient is φ = 371138560.

The previous prime is 402271861. The next prime is 402271873. The reversal of 402271867 is 768172204.

It is an interprime number because it is at equal distance from previous prime (402271861) and next prime (402271873).

It is not a de Polignac number, because 402271867 - 2⁷ = 402271739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402271861) 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, 192267 + ... + 194347.

It is an arithmetic number, because the mean of its divisors is an integer number (27151362).

Almost surely, 2^402271867 is an apocalyptic number.

402271867 is a deficient number, since it is larger than the sum of its proper divisors (32149925).

402271867 is a wasteful number, since it uses less digits than its factorization.

402271867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 402271867 is about 20056.7162566558. The cubic root of 402271867 is about 738.1986053660.

The spelling of 402271867 in words is "four hundred two million, two hundred seventy-one thousand, eight hundred sixty-seven".