42870208 has 14 divisors (see below), whose sum is σ = 85070696. Its totient is φ = 21435072.

The previous prime is 42870197. The next prime is 42870211. The reversal of 42870208 is 80207824.

It is a self number, because there is not a number n which added to its sum of digits gives 42870208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334860 + ... + 334987.

Almost surely, 2^42870208 is an apocalyptic number.

It is an amenable number.

42870208 is a deficient number, since it is larger than the sum of its proper divisors (42200488).

42870208 is an equidigital number, since it uses as much as digits as its factorization.

42870208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669859 (or 669849 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 42870208 is about 6547.5344978091. The cubic root of 42870208 is about 349.9869600584.

The spelling of 42870208 in words is "forty-two million, eight hundred seventy thousand, two hundred eight".