401426243 has 8 divisors (see below), whose sum is σ = 422737920. Its totient is φ = 380133000.

The previous prime is 401426231. The next prime is 401426251. The reversal of 401426243 is 342624104.

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

It is a de Polignac number, because none of the positive numbers 2^k-401426243 is a prime.

It is a super-2 number, since 2×401426243² = 322286057138190098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401426273) 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, 82118 + ... + 86868.

It is an arithmetic number, because the mean of its divisors is an integer number (52842240).

Almost surely, 2^401426243 is an apocalyptic number.

401426243 is a deficient number, since it is larger than the sum of its proper divisors (21311677).

401426243 is a wasteful number, since it uses less digits than its factorization.

401426243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9217.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 401426243 is about 20035.6243476464. The cubic root of 401426243 is about 737.6809816490.

The spelling of 401426243 in words is "four hundred one million, four hundred twenty-six thousand, two hundred forty-three".