401026069 has 2 divisors, whose sum is σ = 401026070. Its totient is φ = 401026068.

The previous prime is 401026063. The next prime is 401026097. The reversal of 401026069 is 960620104.

It is an a-pointer prime, because the next prime (401026097) can be obtained adding 401026069 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 391644100 + 9381969 = 19790^2 + 3063^2 .

It is a cyclic number.

It is not a de Polignac number, because 401026069 - 2⁷ = 401025941 is a prime.

It is a super-2 number, since 2×401026069² = 321643816035185522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401026063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200513034 + 200513035.

It is an arithmetic number, because the mean of its divisors is an integer number (200513035).

Almost surely, 2^401026069 is an apocalyptic number.

It is an amenable number.

401026069 is a deficient number, since it is larger than the sum of its proper divisors (1).

401026069 is an equidigital number, since it uses as much as digits as its factorization.

401026069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 401026069 is about 20025.6352957902. The cubic root of 401026069 is about 737.4357735508.

The spelling of 401026069 in words is "four hundred one million, twenty-six thousand, sixty-nine".