42828040 has 32 divisors (see below), whose sum is σ = 97326360. Its totient is φ = 16960000.

The previous prime is 42828029. The next prime is 42828059. The reversal of 42828040 is 4082824.

It can be written as a sum of positive squares in 4 ways, for example, as 42797764 + 30276 = 6542^2 + 174^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1261 + ... + 9340.

Almost surely, 2^42828040 is an apocalyptic number.

42828040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42828040 is an abundant number, since it is smaller than the sum of its proper divisors (54498320).

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

42828040 is a wasteful number, since it uses less digits than its factorization.

42828040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10713 (or 10709 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 42828040 is about 6544.3135621698. The cubic root of 42828040 is about 349.8721710063.

The spelling of 42828040 in words is "forty-two million, eight hundred twenty-eight thousand, forty".