428040011 has 16 divisors (see below), whose sum is σ = 494376960. Its totient is φ = 363018240.

The previous prime is 428040001. The next prime is 428040061. The reversal of 428040011 is 110040824.

It is a cyclic number.

It is not a de Polignac number, because 428040011 - 2²⁶ = 360931147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428040001) 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, 556235 + ... + 557003.

It is an arithmetic number, because the mean of its divisors is an integer number (30898560).

Almost surely, 2^428040011 is an apocalyptic number.

428040011 is a deficient number, since it is larger than the sum of its proper divisors (66336949).

428040011 is a wasteful number, since it uses less digits than its factorization.

428040011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 428040011 is about 20689.1278453201. The cubic root of 428040011 is about 753.6356870794.

Adding to 428040011 its reverse (110040824), we get a palindrome (538080835).

The spelling of 428040011 in words is "four hundred twenty-eight million, forty thousand, eleven".