428014816 has 24 divisors (see below), whose sum is σ = 865431000. Its totient is φ = 208222848.

The previous prime is 428014801. The next prime is 428014817. The reversal of 428014816 is 618410824.

It is a super-3 number, since 3×428014816³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428014817) 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, 179566 + ... + 181933.

It is an arithmetic number, because the mean of its divisors is an integer number (36059625).

Almost surely, 2^428014816 is an apocalyptic number.

It is an amenable number.

428014816 is an abundant number, since it is smaller than the sum of its proper divisors (437416184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428014816 is a wasteful number, since it uses less digits than its factorization.

428014816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361546 (or 361538 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 428014816 is about 20688.5189416739. The cubic root of 428014816 is about 753.6209001255.

The spelling of 428014816 in words is "four hundred twenty-eight million, fourteen thousand, eight hundred sixteen".