1838970442 has 8 divisors (see below), whose sum is σ = 2903637600. Its totient is φ = 871091244.

The previous prime is 1838970431. The next prime is 1838970449. The reversal of 1838970442 is 2440798381.

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

It is a junction number, because it is equal to n+sod(n) for n = 1838970392 and 1838970401.

It is not an unprimeable number, because it can be changed into a prime (1838970449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24196942 + ... + 24197017.

It is an arithmetic number, because the mean of its divisors is an integer number (362954700).

Almost surely, 2^1838970442 is an apocalyptic number.

1838970442 is a deficient number, since it is larger than the sum of its proper divisors (1064667158).

1838970442 is a wasteful number, since it uses less digits than its factorization.

1838970442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48393980.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 1838970442 is about 42883.2186525219. The cubic root of 1838970442 is about 1225.1565407614.

It can be divided in two parts, 18389 and 70442, that added together give a triangular number (88831 = T₄₂₁).

The spelling of 1838970442 in words is "one billion, eight hundred thirty-eight million, nine hundred seventy thousand, four hundred forty-two".