42855190 has 16 divisors (see below), whose sum is σ = 88159392. Its totient is φ = 14693184.

The previous prime is 42855179. The next prime is 42855193. The reversal of 42855190 is 9155824.

It is a super-2 number, since 2×42855190² = 3673134619872200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42855193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306039 + ... + 306178.

It is an arithmetic number, because the mean of its divisors is an integer number (5509962).

Almost surely, 2^42855190 is an apocalyptic number.

42855190 is an abundant number, since it is smaller than the sum of its proper divisors (45304202).

42855190 is a wasteful number, since it uses less digits than its factorization.

42855190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612231.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 42855190 is about 6546.3875534527. The cubic root of 42855190 is about 349.9460869339.

The spelling of 42855190 in words is "forty-two million, eight hundred fifty-five thousand, one hundred ninety".