42819590 has 16 divisors (see below), whose sum is σ = 84082320. Its totient is φ = 15570720.

The previous prime is 42819571. The next prime is 42819593. The reversal of 42819590 is 9591824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42819593) 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, 194525 + ... + 194744.

It is an arithmetic number, because the mean of its divisors is an integer number (5255145).

Almost surely, 2^42819590 is an apocalyptic number.

42819590 is a deficient number, since it is larger than the sum of its proper divisors (41262730).

42819590 is a wasteful number, since it uses less digits than its factorization.

42819590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389287.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 42819590 is about 6543.6679316726. The cubic root of 42819590 is about 349.8491594910.

The spelling of 42819590 in words is "forty-two million, eight hundred nineteen thousand, five hundred ninety".