42857900 has 18 divisors (see below), whose sum is σ = 93001860. Its totient is φ = 17143120.

The previous prime is 42857897. The next prime is 42857921. The reversal of 42857900 is 975824.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 214190 + ... + 214389.

It is an arithmetic number, because the mean of its divisors is an integer number (5166770).

Almost surely, 2^42857900 is an apocalyptic number.

It is an amenable number.

42857900 is an abundant number, since it is smaller than the sum of its proper divisors (50143960).

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

42857900 is a wasteful number, since it uses less digits than its factorization.

42857900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428593 (or 428586 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 42857900 is about 6546.5945345653. The cubic root of 42857900 is about 349.9534632004.

The spelling of 42857900 in words is "forty-two million, eight hundred fifty-seven thousand, nine hundred".