401099 has 4 divisors (see below), whose sum is σ = 414960. Its totient is φ = 387240.

The previous prime is 401087. The next prime is 401101. The reversal of 401099 is 990104.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401099 is a prime.

It is a Duffinian 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6887 + ... + 6944.

It is an arithmetic number, because the mean of its divisors is an integer number (103740).

2⁴⁰¹⁰⁹⁹ is an apocalyptic number.

401099 is a deficient number, since it is larger than the sum of its proper divisors (13861).

401099 is a wasteful number, since it uses less digits than its factorization.

401099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13860.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 401099 is about 633.3237718576. The cubic root of 401099 is about 73.7480474442.

The spelling of 401099 in words is "four hundred one thousand, ninety-nine".