42219782 has 16 divisors (see below), whose sum is σ = 70120512. Its totient is φ = 18903720.

The previous prime is 42219781. The next prime is 42219797. The reversal of 42219782 is 28791224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42219781) 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, 12848 + ... + 15795.

It is an arithmetic number, because the mean of its divisors is an integer number (4382532).

Almost surely, 2^42219782 is an apocalyptic number.

42219782 is a deficient number, since it is larger than the sum of its proper divisors (27900730).

42219782 is a wasteful number, since it uses less digits than its factorization.

42219782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28723.

The product of its digits is 16128, while the sum is 35.

The square root of 42219782 is about 6497.6751226881. The cubic root of 42219782 is about 348.2079338203.

The spelling of 42219782 in words is "forty-two million, two hundred nineteen thousand, seven hundred eighty-two".