401424263 has 2 divisors, whose sum is σ = 401424264. Its totient is φ = 401424262.

The previous prime is 401424253. The next prime is 401424319. The reversal of 401424263 is 362424104.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401424263 is a prime.

It is a super-2 number, since 2×401424263² = 322282877850186338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401424223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200712131 + 200712132.

It is an arithmetic number, because the mean of its divisors is an integer number (200712132).

Almost surely, 2^401424263 is an apocalyptic number.

401424263 is a deficient number, since it is larger than the sum of its proper divisors (1).

401424263 is an equidigital number, since it uses as much as digits as its factorization.

401424263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 401424263 is about 20035.5749355989. The cubic root of 401424263 is about 737.6797687979.

Adding to 401424263 its reverse (362424104), we get a palindrome (763848367).

The spelling of 401424263 in words is "four hundred one million, four hundred twenty-four thousand, two hundred sixty-three".