401830873 has 8 divisors (see below), whose sum is σ = 425827080. Its totient is φ = 378510720.

The previous prime is 401830859. The next prime is 401830879. The reversal of 401830873 is 378038104.

It can be written as a sum of positive squares in 4 ways, for example, as 1710864 + 400120009 = 1308^2 + 20003^2 .

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-401830873 is a prime.

It is a super-2 number, since 2×401830873² = 322936100991884258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401830879) 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, 167790 + ... + 170167.

It is an arithmetic number, because the mean of its divisors is an integer number (53228385).

Almost surely, 2^401830873 is an apocalyptic number.

It is an amenable number.

401830873 is a deficient number, since it is larger than the sum of its proper divisors (23996207).

401830873 is a wasteful number, since it uses less digits than its factorization.

401830873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338027.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 401830873 is about 20045.7195680275. The cubic root of 401830873 is about 737.9287545395.

Adding to 401830873 its reverse (378038104), we get a palindrome (779868977).

The spelling of 401830873 in words is "four hundred one million, eight hundred thirty thousand, eight hundred seventy-three".