401023 has 8 divisors (see below), whose sum is σ = 466560.
Its totient is φ = 337560.
The previous prime is 401017. The next prime is 401029. The reversal of 401023 is 320104.
It is an interprime number because it is at equal distance from previous prime (401017) and next prime (401029).
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 401023 - 213 = 392831 is a prime.
It is a Duffinian number.
It is a zygodrome in base 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (401029) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73 + ... + 898.
It is an arithmetic number, because the mean of its divisors is an integer number (58320).
2401023 is an apocalyptic number.
401023 is a deficient number, since it is larger than the sum of its proper divisors (65537).
401023 is an equidigital number, since it uses as much as digits as its factorization.
401023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1037.
The product of its (nonzero) digits is 24, while the sum is 10.
The square root of 401023 is about 633.2637681093.
The cubic root of 401023 is about 73.7433892380.
Adding to 401023 its reverse (320104), we get a palindrome (721127).
The spelling of 401023 in words is "four hundred one thousand, twenty-three", and thus it is an iban number.