42028800 has 216 divisors, whose sum is σ = 152073600. Its totient is φ = 10137600.

The previous prime is 42028787. The next prime is 42028849. The reversal of 42028800 is 882024.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211101 + ... + 211299.

Almost surely, 2^42028800 is an apocalyptic number.

42028800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42028800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76036800).

42028800 is an abundant number, since it is smaller than the sum of its proper divisors (110044800).

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

42028800 is a wasteful number, since it uses less digits than its factorization.

42028800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 42028800 is about 6482.9622858690. The cubic root of 42028800 is about 347.6820983727.

The spelling of 42028800 in words is "forty-two million, twenty-eight thousand, eight hundred".