401374279 has 2 divisors, whose sum is σ = 401374280. Its totient is φ = 401374278.

The previous prime is 401374249. The next prime is 401374319. The reversal of 401374279 is 972473104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401374279 - 2⁷ = 401374151 is a prime.

It is a super-2 number, since 2×401374279² = 322202623685539682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401374249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200687139 + 200687140.

It is an arithmetic number, because the mean of its divisors is an integer number (200687140).

Almost surely, 2^401374279 is an apocalyptic number.

401374279 is a deficient number, since it is larger than the sum of its proper divisors (1).

401374279 is an equidigital number, since it uses as much as digits as its factorization.

401374279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 401374279 is about 20034.3275155419. The cubic root of 401374279 is about 737.6491497252.

The spelling of 401374279 in words is "four hundred one million, three hundred seventy-four thousand, two hundred seventy-nine".