402741865 has 8 divisors (see below), whose sum is σ = 483519168. Its totient is φ = 322040880.

The previous prime is 402741851. The next prime is 402741869. The reversal of 402741865 is 568147204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 402741865 - 2⁷ = 402741737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402741869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6741 + ... + 29170.

It is an arithmetic number, because the mean of its divisors is an integer number (60439896).

Almost surely, 2^402741865 is an apocalyptic number.

It is an amenable number.

402741865 is a deficient number, since it is larger than the sum of its proper divisors (80777303).

402741865 is a wasteful number, since it uses less digits than its factorization.

402741865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38159.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 402741865 is about 20068.4295598834. The cubic root of 402741865 is about 738.4859871616.

The spelling of 402741865 in words is "four hundred two million, seven hundred forty-one thousand, eight hundred sixty-five".