401380165 has 8 divisors (see below), whose sum is σ = 484612128. Its totient is φ = 319133520.

The previous prime is 401380159. The next prime is 401380169. The reversal of 401380165 is 561083104.

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

It is a de Polignac number, because none of the positive numbers 2^k-401380165 is a prime.

It is a super-2 number, since 2×401380165² = 322212073710854450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401380169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245431 + ... + 247060.

It is an arithmetic number, because the mean of its divisors is an integer number (60576516).

Almost surely, 2^401380165 is an apocalyptic number.

It is an amenable number.

401380165 is a deficient number, since it is larger than the sum of its proper divisors (83231963).

401380165 is a wasteful number, since it uses less digits than its factorization.

401380165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492659.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 401380165 is about 20034.4744128714. The cubic root of 401380165 is about 737.6527554883.

The spelling of 401380165 in words is "four hundred one million, three hundred eighty thousand, one hundred sixty-five".