402660155 has 8 divisors (see below), whose sum is σ = 483408000. Its totient is φ = 321984256.

The previous prime is 402660131. The next prime is 402660161. The reversal of 402660155 is 551066204.

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 402660155 - 2¹⁴ = 402643771 is a prime.

It is an unprimeable number.

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, 4790 + ... + 28779.

It is an arithmetic number, because the mean of its divisors is an integer number (60426000).

Almost surely, 2^402660155 is an apocalyptic number.

402660155 is a deficient number, since it is larger than the sum of its proper divisors (80747845).

402660155 is a wasteful number, since it uses less digits than its factorization.

402660155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35973.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 402660155 is about 20066.3936720079. The cubic root of 402660155 is about 738.4360413803.

The spelling of 402660155 in words is "four hundred two million, six hundred sixty thousand, one hundred fifty-five".