2019240438 has 8 divisors (see below), whose sum is σ = 4038480888. Its totient is φ = 673080144.

The previous prime is 2019240407. The next prime is 2019240451. The reversal of 2019240438 is 8340429102.

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

2019240438 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2019240399 and 2019240408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168270031 + ... + 168270042.

It is an arithmetic number, because the mean of its divisors is an integer number (504810111).

Almost surely, 2^2019240438 is an apocalyptic number.

2019240438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2019240438 is a wasteful number, since it uses less digits than its factorization.

2019240438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336540078.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 2019240438 is about 44935.9592976494. The cubic root of 2019240438 is about 1263.9484015116.

The spelling of 2019240438 in words is "two billion, nineteen million, two hundred forty thousand, four hundred thirty-eight".