42828320 has 24 divisors (see below), whose sum is σ = 101182284. Its totient is φ = 17131264.

The previous prime is 42828271. The next prime is 42828347. The reversal of 42828320 is 2382824.

It can be written as a sum of positive squares in 2 ways, for example, as 41011216 + 1817104 = 6404^2 + 1348^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133679 + ... + 133998.

Almost surely, 2^42828320 is an apocalyptic number.

42828320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42828320 is an abundant number, since it is smaller than the sum of its proper divisors (58353964).

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

42828320 is a wasteful number, since it uses less digits than its factorization.

42828320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267692 (or 267684 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 42828320 is about 6544.3349547529. The cubic root of 42828320 is about 349.8729334663.

The spelling of 42828320 in words is "forty-two million, eight hundred twenty-eight thousand, three hundred twenty".