401049091 has 32 divisors (see below), whose sum is σ = 463916160. Its totient is φ = 344408064.

The previous prime is 401049071. The next prime is 401049113. The reversal of 401049091 is 190940104.

It is a cyclic number.

It is not a de Polignac number, because 401049091 - 2⁹ = 401048579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401049001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1281151 + ... + 1281463.

It is an arithmetic number, because the mean of its divisors is an integer number (14497380).

Almost surely, 2^401049091 is an apocalyptic number.

401049091 is a deficient number, since it is larger than the sum of its proper divisors (62867069).

401049091 is a wasteful number, since it uses less digits than its factorization.

401049091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 401049091 is about 20026.2101007654. The cubic root of 401049091 is about 737.4498847877.

Adding to 401049091 its reverse (190940104), we get a palindrome (591989195).

The spelling of 401049091 in words is "four hundred one million, forty-nine thousand, ninety-one".