401420613 has 16 divisors (see below), whose sum is σ = 585801216. Its totient is φ = 242486640.

The previous prime is 401420599. The next prime is 401420623. The reversal of 401420613 is 316024104.

It is not a de Polignac number, because 401420613 - 2²² = 397226309 is a prime.

It is a super-2 number, since 2×401420613² = 322277017082591538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401420613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401420623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9681 + ... + 29942.

It is an arithmetic number, because the mean of its divisors is an integer number (36612576).

Almost surely, 2^401420613 is an apocalyptic number.

It is an amenable number.

401420613 is a deficient number, since it is larger than the sum of its proper divisors (184380603).

401420613 is a wasteful number, since it uses less digits than its factorization.

401420613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39944.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 401420613 is about 20035.4838474143. The cubic root of 401420613 is about 737.6775329761.

Adding to 401420613 its reverse (316024104), we get a palindrome (717444717).

The spelling of 401420613 in words is "four hundred one million, four hundred twenty thousand, six hundred thirteen".