42319491 has 8 divisors (see below), whose sum is σ = 56663040. Its totient is φ = 28094472.

The previous prime is 42319489. The next prime is 42319499. The reversal of 42319491 is 19491324.

42319491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42319491 - 2¹ = 42319489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42319499) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28795 + ... + 30228.

It is an arithmetic number, because the mean of its divisors is an integer number (7082880).

Almost surely, 2^42319491 is an apocalyptic number.

42319491 is a deficient number, since it is larger than the sum of its proper divisors (14343549).

42319491 is a wasteful number, since it uses less digits than its factorization.

42319491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59265.

The product of its digits is 7776, while the sum is 33.

The square root of 42319491 is about 6505.3432653473. The cubic root of 42319491 is about 348.4818351932.

The spelling of 42319491 in words is "forty-two million, three hundred nineteen thousand, four hundred ninety-one".