42740190 has 64 divisors (see below), whose sum is σ = 115948800. Its totient is φ = 11200032.

The previous prime is 42740189. The next prime is 42740219. The reversal of 42740190 is 9104724.

It is a happy number.

42740190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42740190² = 3653447682472200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14589 + ... + 17271.

It is an arithmetic number, because the mean of its divisors is an integer number (1811700).

Almost surely, 2^42740190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42740190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57974400).

42740190 is an abundant number, since it is smaller than the sum of its proper divisors (73208610).

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

42740190 is a wasteful number, since it uses less digits than its factorization.

42740190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2758 (or 2752 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 42740190 is about 6537.5981828191. The cubic root of 42740190 is about 349.6327849259.

The spelling of 42740190 in words is "forty-two million, seven hundred forty thousand, one hundred ninety".