42828770 has 16 divisors (see below), whose sum is σ = 78547320. Its totient is φ = 16808064.

The previous prime is 42828769. The next prime is 42828781. The reversal of 42828770 is 7782824.

It can be written as a sum of positive squares in 4 ways, for example, as 40921609 + 1907161 = 6397^2 + 1381^2 .

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, 39875 + ... + 40934.

Almost surely, 2^42828770 is an apocalyptic number.

42828770 is a deficient number, since it is larger than the sum of its proper divisors (35718550).

42828770 is a wasteful number, since it uses less digits than its factorization.

42828770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80869.

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 42828770 is about 6544.3693355433. The cubic root of 42828770 is about 349.8741588413.

The spelling of 42828770 in words is "forty-two million, eight hundred twenty-eight thousand, seven hundred seventy".