401420611 has 4 divisors (see below), whose sum is σ = 403438000. Its totient is φ = 399403224.

The previous prime is 401420599. The next prime is 401420623. The reversal of 401420611 is 116024104.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (401420599) and next prime (401420623).

It is a cyclic number.

It is not a de Polignac number, because 401420611 - 2²⁷ = 267202883 is a prime.

It is a super-2 number, since 2×401420611² = 322277013871226642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401423611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008396 + ... + 1008793.

It is an arithmetic number, because the mean of its divisors is an integer number (100859500).

Almost surely, 2^401420611 is an apocalyptic number.

401420611 is a deficient number, since it is larger than the sum of its proper divisors (2017389).

401420611 is a wasteful number, since it uses less digits than its factorization.

401420611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017388.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 401420611 is about 20035.4837975029. The cubic root of 401420611 is about 737.6775317510.

Adding to 401420611 its reverse (116024104), we get a palindrome (517444715).

The spelling of 401420611 in words is "four hundred one million, four hundred twenty thousand, six hundred eleven".