401194309 has 8 divisors (see below), whose sum is σ = 403038720. Its totient is φ = 399355056.

The previous prime is 401194301. The next prime is 401194331. The reversal of 401194309 is 903491104.

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 401194309 - 2³ = 401194301 is a prime.

It is a super-3 number, since 3×401194309³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401194301) 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, 255244 + ... + 256810.

It is an arithmetic number, because the mean of its divisors is an integer number (50379840).

Almost surely, 2^401194309 is an apocalyptic number.

It is an amenable number.

401194309 is a deficient number, since it is larger than the sum of its proper divisors (1844411).

401194309 is a wasteful number, since it uses less digits than its factorization.

401194309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 401194309 is about 20029.8354711166. The cubic root of 401194309 is about 737.5388830979.

The spelling of 401194309 in words is "four hundred one million, one hundred ninety-four thousand, three hundred nine".