401412091 has 4 divisors (see below), whose sum is σ = 401585184. Its totient is φ = 401239000.

The previous prime is 401412083. The next prime is 401412127. The reversal of 401412091 is 190214104.

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

It is a cyclic number.

It is not a de Polignac number, because 401412091 - 2³ = 401412083 is a prime.

It is a super-2 number, since 2×401412091² = 322263333601984562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401412071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83020 + ... + 87721.

It is an arithmetic number, because the mean of its divisors is an integer number (100396296).

Almost surely, 2^401412091 is an apocalyptic number.

401412091 is a deficient number, since it is larger than the sum of its proper divisors (173093).

401412091 is a wasteful number, since it uses less digits than its factorization.

401412091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173092.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 401412091 is about 20035.2711736078. The cubic root of 401412091 is about 737.6723127390.

Adding to 401412091 its reverse (190214104), we get a palindrome (591626195).

The spelling of 401412091 in words is "four hundred one million, four hundred twelve thousand, ninety-one".