401291011 has 8 divisors (see below), whose sum is σ = 449604144. Its totient is φ = 354949920.

The previous prime is 401291003. The next prime is 401291017. The reversal of 401291011 is 110192104.

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 401291011 - 2³ = 401291003 is a prime.

It is a super-2 number, since 2×401291011² = 322068951018804242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401291011.

It is not an unprimeable number, because it can be changed into a prime (401291017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492580 + ... + 493393.

It is an arithmetic number, because the mean of its divisors is an integer number (56200518).

Almost surely, 2^401291011 is an apocalyptic number.

401291011 is a deficient number, since it is larger than the sum of its proper divisors (48313133).

401291011 is a wasteful number, since it uses less digits than its factorization.

401291011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986021.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 401291011 is about 20032.2492746072. The cubic root of 401291011 is about 737.5981359785.

The spelling of 401291011 in words is "four hundred one million, two hundred ninety-one thousand, eleven".