401404003279 has 2 divisors, whose sum is σ = 401404003280. Its totient is φ = 401404003278.

The previous prime is 401404003271. The next prime is 401404003337. The reversal of 401404003279 is 972300404104.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401404003279 - 2³ = 401404003271 is a prime.

It is a super-2 number, since 2×401404003279² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401404003271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200702001639 + 200702001640.

It is an arithmetic number, because the mean of its divisors is an integer number (200702001640).

Almost surely, 2^401404003279 is an apocalyptic number.

401404003279 is a deficient number, since it is larger than the sum of its proper divisors (1).

401404003279 is an equidigital number, since it uses as much as digits as its factorization.

401404003279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 401404003279 in words is "four hundred one billion, four hundred four million, three thousand, two hundred seventy-nine".