42190615 has 4 divisors (see below), whose sum is σ = 50628744. Its totient is φ = 33752488.

The previous prime is 42190607. The next prime is 42190627. The reversal of 42190615 is 51609124.

42190615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42190615 - 2³ = 42190607 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 4219057 + ... + 4219066.

It is an arithmetic number, because the mean of its divisors is an integer number (12657186).

Almost surely, 2^42190615 is an apocalyptic number.

42190615 is a deficient number, since it is larger than the sum of its proper divisors (8438129).

42190615 is an equidigital number, since it uses as much as digits as its factorization.

42190615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8438128.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 42190615 is about 6495.4303167689. The cubic root of 42190615 is about 348.1277303393.

Adding to 42190615 its reverse (51609124), we get a palindrome (93799739).

The spelling of 42190615 in words is "forty-two million, one hundred ninety thousand, six hundred fifteen".