42492219 has 16 divisors (see below), whose sum is σ = 70636800. Its totient is φ = 22073760.

The previous prime is 42492199. The next prime is 42492251. The reversal of 42492219 is 91229424.

It is not a de Polignac number, because 42492219 - 2⁷ = 42492091 is a prime.

It is a super-2 number, since 2×42492219² = 3611177351087922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 42492219.

It is not an unprimeable number, because it can be changed into a prime (42492259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91744 + ... + 92205.

It is an arithmetic number, because the mean of its divisors is an integer number (4414800).

Almost surely, 2^42492219 is an apocalyptic number.

42492219 is a deficient number, since it is larger than the sum of its proper divisors (28144581).

42492219 is a wasteful number, since it uses less digits than its factorization.

42492219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183970.

The product of its digits is 10368, while the sum is 33.

The square root of 42492219 is about 6518.6056024276. The cubic root of 42492219 is about 348.9553038931.

The spelling of 42492219 in words is "forty-two million, four hundred ninety-two thousand, two hundred nineteen".