428296020 has 48 divisors (see below), whose sum is σ = 1200140928. Its totient is φ = 114125440.

The previous prime is 428296009. The next prime is 428296061. The reversal of 428296020 is 20692824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132625 + ... + 135815.

It is an arithmetic number, because the mean of its divisors is an integer number (25002936).

Almost surely, 2^428296020 is an apocalyptic number.

It is an amenable number.

428296020 is an abundant number, since it is smaller than the sum of its proper divisors (771844908).

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

428296020 is a wasteful number, since it uses less digits than its factorization.

428296020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5440 (or 5438 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 428296020 is about 20695.3139623442. The cubic root of 428296020 is about 753.7859059541.

The spelling of 428296020 in words is "four hundred twenty-eight million, two hundred ninety-six thousand, twenty".