428544027 has 40 divisors (see below), whose sum is σ = 686168736. Its totient is φ = 265845888.

The previous prime is 428544019. The next prime is 428544029. The reversal of 428544027 is 720445824.

It is not a de Polignac number, because 428544027 - 2³ = 428544019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428543982 and 428544000.

It is not an unprimeable number, because it can be changed into a prime (428544029) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 65823 + ... + 72039.

Almost surely, 2^428544027 is an apocalyptic number.

428544027 is a deficient number, since it is larger than the sum of its proper divisors (257624709).

428544027 is a wasteful number, since it uses less digits than its factorization.

428544027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6289 (or 6280 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 428544027 is about 20701.3049588667. The cubic root of 428544027 is about 753.9313724075.

The spelling of 428544027 in words is "four hundred twenty-eight million, five hundred forty-four thousand, twenty-seven".