428011161 has 16 divisors (see below), whose sum is σ = 575690880. Its totient is φ = 282844800.

The previous prime is 428011139. The next prime is 428011183. The reversal of 428011161 is 161110824.

It is an interprime number because it is at equal distance from previous prime (428011139) and next prime (428011183).

It is not a de Polignac number, because 428011161 - 2⁶ = 428011097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428011061) 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, 331405 + ... + 332693.

It is an arithmetic number, because the mean of its divisors is an integer number (35980680).

Almost surely, 2^428011161 is an apocalyptic number.

It is an amenable number.

428011161 is a deficient number, since it is larger than the sum of its proper divisors (147679719).

428011161 is a wasteful number, since it uses less digits than its factorization.

428011161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 428011161 is about 20688.4306074675. The cubic root of 428011161 is about 753.6187549566.

Adding to 428011161 its reverse (161110824), we get a palindrome (589121985).

The spelling of 428011161 in words is "four hundred twenty-eight million, eleven thousand, one hundred sixty-one".