401930 has 8 divisors (see below), whose sum is σ = 723492. Its totient is φ = 160768.

The previous prime is 401917. The next prime is 401939. The reversal of 401930 is 39104.

It can be written as a sum of positive squares in 2 ways, for example, as 383161 + 18769 = 619^2 + 137^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 401899 and 401908.

It is not an unprimeable number, because it can be changed into a prime (401939) by changing a digit.

401930 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20087 + ... + 20106.

2⁴⁰¹⁹³⁰ is an apocalyptic number.

401930 is a deficient number, since it is larger than the sum of its proper divisors (321562).

401930 is a wasteful number, since it uses less digits than its factorization.

401930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40200.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 401930 is about 633.9794949365. The cubic root of 401930 is about 73.7989429029.

It can be divided in two parts, 401 and 930, that added together give a palindrome (1331).

The spelling of 401930 in words is "four hundred one thousand, nine hundred thirty".