1938247242 has 8 divisors (see below), whose sum is σ = 3876494496. Its totient is φ = 646082412.

The previous prime is 1938247229. The next prime is 1938247253. The reversal of 1938247242 is 2427428391.

1938247242 is digitally balanced in base 4, 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.

1938247242 is an admirable number.

It is a super-2 number, since 2×1938247242² = 7513604742241213128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1938247194 and 1938247203.

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, 161520598 + ... + 161520609.

It is an arithmetic number, because the mean of its divisors is an integer number (484561812).

Almost surely, 2^1938247242 is an apocalyptic number.

1938247242 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.

1938247242 is a wasteful number, since it uses less digits than its factorization.

1938247242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323041212.

The product of its digits is 193536, while the sum is 42.

The square root of 1938247242 is about 44025.5294346360. The cubic root of 1938247242 is about 1246.8179849910.

The spelling of 1938247242 in words is "one billion, nine hundred thirty-eight million, two hundred forty-seven thousand, two hundred forty-two".