428296240020 has 48 divisors (see below), whose sum is σ = 1308250335168. Its totient is φ = 103829391360.

The previous prime is 428296239947. The next prime is 428296240061. The reversal of 428296240020 is 20042692824.

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, 324466189 + ... + 324467508.

It is an arithmetic number, because the mean of its divisors is an integer number (27255215316).

Almost surely, 2^428296240020 is an apocalyptic number.

It is an amenable number.

428296240020 is an abundant number, since it is smaller than the sum of its proper divisors (879954095148).

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

428296240020 is a wasteful number, since it uses less digits than its factorization.

428296240020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648933720 (or 648933718 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 428296240020 in words is "four hundred twenty-eight billion, two hundred ninety-six million, two hundred forty thousand, twenty".