428022460 has 12 divisors (see below), whose sum is σ = 898847208. Its totient is φ = 171208976.

The previous prime is 428022437. The next prime is 428022461. The reversal of 428022460 is 64220824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428022461) 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, 10700542 + ... + 10700581.

It is an arithmetic number, because the mean of its divisors is an integer number (74903934).

Almost surely, 2^428022460 is an apocalyptic number.

It is an amenable number.

428022460 is an abundant number, since it is smaller than the sum of its proper divisors (470824748).

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

428022460 is a wasteful number, since it uses less digits than its factorization.

428022460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21401132 (or 21401130 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 428022460 is about 20688.7036809946. The cubic root of 428022460 is about 753.6253864530.

The spelling of 428022460 in words is "four hundred twenty-eight million, twenty-two thousand, four hundred sixty".