2019423078 has 12 divisors (see below), whose sum is σ = 4375416708. Its totient is φ = 673141020.

The previous prime is 2019423073. The next prime is 2019423139. The reversal of 2019423078 is 8703249102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2019423073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56095068 + ... + 56095103.

It is an arithmetic number, because the mean of its divisors is an integer number (364618059).

Almost surely, 2^2019423078 is an apocalyptic number.

2019423078 is an abundant number, since it is smaller than the sum of its proper divisors (2355993630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2019423078 is a wasteful number, since it uses less digits than its factorization.

2019423078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112190179 (or 112190176 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2019423078 is about 44937.9914771455. The cubic root of 2019423078 is about 1263.9865083449.

The spelling of 2019423078 in words is "two billion, nineteen million, four hundred twenty-three thousand, seventy-eight".