409181401 has 8 divisors (see below), whose sum is σ = 415415808. Its totient is φ = 402990000.

The previous prime is 409181371. The next prime is 409181429. The reversal of 409181401 is 104181904.

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

It is not a de Polignac number, because 409181401 - 2⁷ = 409181273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 409181401.

It is not an unprimeable number, because it can be changed into a prime (409181471) 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, 8686 + ... + 29896.

It is an arithmetic number, because the mean of its divisors is an integer number (51926976).

Almost surely, 2^409181401 is an apocalyptic number.

It is an amenable number.

409181401 is a deficient number, since it is larger than the sum of its proper divisors (6234407).

409181401 is a wasteful number, since it uses less digits than its factorization.

409181401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21503.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 409181401 is about 20228.2327700667. The cubic root of 409181401 is about 742.4011369843.

The spelling of 409181401 in words is "four hundred nine million, one hundred eighty-one thousand, four hundred one".