428258651 has 4 divisors (see below), whose sum is σ = 450798600. Its totient is φ = 405718704.

The previous prime is 428258627. The next prime is 428258659. The reversal of 428258651 is 156852824.

It is a happy number.

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

It is not a de Polignac number, because 428258651 - 2¹⁸ = 427996507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428258599 and 428258608.

It is not an unprimeable number, because it can be changed into a prime (428258659) 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, 11269946 + ... + 11269983.

It is an arithmetic number, because the mean of its divisors is an integer number (112699650).

Almost surely, 2^428258651 is an apocalyptic number.

428258651 is a deficient number, since it is larger than the sum of its proper divisors (22539949).

428258651 is a wasteful number, since it uses less digits than its factorization.

428258651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22539948.

The product of its digits is 153600, while the sum is 41.

The square root of 428258651 is about 20694.4111054168. The cubic root of 428258651 is about 753.7639826087.

The spelling of 428258651 in words is "four hundred twenty-eight million, two hundred fifty-eight thousand, six hundred fifty-one".