401186023 has 4 divisors (see below), whose sum is σ = 458498320. Its totient is φ = 343873728.

The previous prime is 401186021. The next prime is 401186057. The reversal of 401186023 is 320681104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401186023 - 2¹ = 401186021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401186021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28656138 + ... + 28656151.

It is an arithmetic number, because the mean of its divisors is an integer number (114624580).

Almost surely, 2^401186023 is an apocalyptic number.

401186023 is a deficient number, since it is larger than the sum of its proper divisors (57312297).

401186023 is an equidigital number, since it uses as much as digits as its factorization.

401186023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57312296.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 401186023 is about 20029.6286286092. The cubic root of 401186023 is about 737.5338055173.

The spelling of 401186023 in words is "four hundred one million, one hundred eighty-six thousand, twenty-three".