402560155 has 8 divisors (see below), whose sum is σ = 486876672. Its totient is φ = 319511808.

The previous prime is 402560129. The next prime is 402560177. The reversal of 402560155 is 551065204.

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

It is a cyclic number.

It is not a de Polignac number, because 402560155 - 2¹⁵ = 402527387 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 316342 + ... + 317611.

It is an arithmetic number, because the mean of its divisors is an integer number (60859584).

Almost surely, 2^402560155 is an apocalyptic number.

402560155 is a deficient number, since it is larger than the sum of its proper divisors (84316517).

402560155 is a wasteful number, since it uses less digits than its factorization.

402560155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634085.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 402560155 is about 20063.9017890340. The cubic root of 402560155 is about 738.3749065192.

The spelling of 402560155 in words is "four hundred two million, five hundred sixty thousand, one hundred fifty-five".