401275843 has 2 divisors, whose sum is σ = 401275844. Its totient is φ = 401275842.

The previous prime is 401275807. The next prime is 401275913. The reversal of 401275843 is 348572104.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401275843 is a prime.

It is a super-2 number, since 2×401275843² = 322044604350721298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401275799 and 401275808.

It is not a weakly prime, because it can be changed into another prime (401275643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200637921 + 200637922.

It is an arithmetic number, because the mean of its divisors is an integer number (200637922).

Almost surely, 2^401275843 is an apocalyptic number.

401275843 is a deficient number, since it is larger than the sum of its proper divisors (1).

401275843 is an equidigital number, since it uses as much as digits as its factorization.

401275843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 401275843 is about 20031.8706814915. The cubic root of 401275843 is about 737.5888426152.

The spelling of 401275843 in words is "four hundred one million, two hundred seventy-five thousand, eight hundred forty-three".