401420233 has 6 divisors (see below), whose sum is σ = 415740494. Its totient is φ = 387577344.

The previous prime is 401420231. The next prime is 401420267. The reversal of 401420233 is 332024104.

It can be written as a sum of positive squares in 3 ways, for example, as 173923344 + 227496889 = 13188^2 + 15083^2 .

It is not a de Polignac number, because 401420233 - 2¹ = 401420231 is a prime.

It is a super-2 number, since 2×401420233² = 322276406923548578, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401420233.

It is not an unprimeable number, because it can be changed into a prime (401420231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237816 + ... + 239497.

Almost surely, 2^401420233 is an apocalyptic number.

It is an amenable number.

401420233 is a deficient number, since it is larger than the sum of its proper divisors (14320261).

401420233 is an equidigital number, since it uses as much as digits as its factorization.

401420233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477371 (or 477342 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 401420233 is about 20035.4743642370. The cubic root of 401420233 is about 737.6773002049.

Adding to 401420233 its reverse (332024104), we get a palindrome (733444337).

The spelling of 401420233 in words is "four hundred one million, four hundred twenty thousand, two hundred thirty-three".