401940127 has 2 divisors, whose sum is σ = 401940128. Its totient is φ = 401940126.

The previous prime is 401940107. The next prime is 401940167. The reversal of 401940127 is 721049104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401940127 - 2⁷ = 401939999 is a prime.

It is a super-2 number, since 2×401940127² = 323111731385552258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401940095 and 401940104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401940107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200970063 + 200970064.

It is an arithmetic number, because the mean of its divisors is an integer number (200970064).

Almost surely, 2^401940127 is an apocalyptic number.

401940127 is a deficient number, since it is larger than the sum of its proper divisors (1).

401940127 is an equidigital number, since it uses as much as digits as its factorization.

401940127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 401940127 is about 20048.4445032526. Note that the first 3 decimals coincide. The cubic root of 401940127 is about 737.9956270871.

The spelling of 401940127 in words is "four hundred one million, nine hundred forty thousand, one hundred twenty-seven".