402680085 has 8 divisors (see below), whose sum is σ = 644288160. Its totient is φ = 214762704.

The previous prime is 402680063. The next prime is 402680119. The reversal of 402680085 is 580086204.

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

It is not a de Polignac number, because 402680085 - 2⁷ = 402679957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13422655 + ... + 13422684.

It is an arithmetic number, because the mean of its divisors is an integer number (80536020).

Almost surely, 2^402680085 is an apocalyptic number.

It is an amenable number.

402680085 is a deficient number, since it is larger than the sum of its proper divisors (241608075).

402680085 is a wasteful number, since it uses less digits than its factorization.

402680085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26845347.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 402680085 is about 20066.8902673035. The cubic root of 402680085 is about 738.4482243485.

The spelling of 402680085 in words is "four hundred two million, six hundred eighty thousand, eighty-five".