401296918 has 16 divisors (see below), whose sum is σ = 667434960. Its totient is φ = 179416800.

The previous prime is 401296913. The next prime is 401296919. The reversal of 401296918 is 819692104.

It is a super-2 number, since 2×401296918² = 322078432792597448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401296913) 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, 148173 + ... + 150856.

It is an arithmetic number, because the mean of its divisors is an integer number (41714685).

Almost surely, 2^401296918 is an apocalyptic number.

401296918 is a deficient number, since it is larger than the sum of its proper divisors (266138042).

401296918 is a wasteful number, since it uses less digits than its factorization.

401296918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299103.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 401296918 is about 20032.3967113274. The cubic root of 401296918 is about 737.6017551067.

The spelling of 401296918 in words is "four hundred one million, two hundred ninety-six thousand, nine hundred eighteen".