426021528 has 32 divisors (see below), whose sum is σ = 1066282560. Its totient is φ = 141843360.

The previous prime is 426021523. The next prime is 426021559. The reversal of 426021528 is 825120624.

It is a junction number, because it is equal to n+sod(n) for n = 426021495 and 426021504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426021523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11983 + ... + 31553.

It is an arithmetic number, because the mean of its divisors is an integer number (33321330).

Almost surely, 2^426021528 is an apocalyptic number.

It is an amenable number.

426021528 is an abundant number, since it is smaller than the sum of its proper divisors (640261032).

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

426021528 is a wasteful number, since it uses less digits than its factorization.

426021528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20487 (or 20483 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 426021528 is about 20640.2889514658. The cubic root of 426021528 is about 752.4491949968.

The spelling of 426021528 in words is "four hundred twenty-six million, twenty-one thousand, five hundred twenty-eight".