1896949938 has 32 divisors (see below), whose sum is σ = 4091887296. Its totient is φ = 582798528.

The previous prime is 1896949937. The next prime is 1896949961. The reversal of 1896949938 is 8399496981.

It is not an unprimeable number, because it can be changed into a prime (1896949933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34845 + ... + 70767.

It is an arithmetic number, because the mean of its divisors is an integer number (127871478).

Almost surely, 2^1896949938 is an apocalyptic number.

1896949938 is an abundant number, since it is smaller than the sum of its proper divisors (2194937358).

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

1896949938 is a wasteful number, since it uses less digits than its factorization.

1896949938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36618.

The product of its digits is 30233088, while the sum is 66.

The square root of 1896949938 is about 43553.9887725568. The cubic root of 1896949938 is about 1237.8992217111.

The spelling of 1896949938 in words is "one billion, eight hundred ninety-six million, nine hundred forty-nine thousand, nine hundred thirty-eight".