401817023 has 8 divisors (see below), whose sum is σ = 408659328. Its totient is φ = 394999704.

The previous prime is 401817001. The next prime is 401817029. The reversal of 401817023 is 320718104.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401817023 is a prime.

It is a super-2 number, since 2×401817023² = 322913839945165058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401816983 and 401817001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401817029) 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, 27740 + ... + 39662.

It is an arithmetic number, because the mean of its divisors is an integer number (51082416).

Almost surely, 2^401817023 is an apocalyptic number.

401817023 is a deficient number, since it is larger than the sum of its proper divisors (6842305).

401817023 is a wasteful number, since it uses less digits than its factorization.

401817023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12493.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 401817023 is about 20045.3741047654. The cubic root of 401817023 is about 737.9202763203.

The spelling of 401817023 in words is "four hundred one million, eight hundred seventeen thousand, twenty-three".