1949534642 has 16 divisors (see below), whose sum is σ = 3233850912. Its totient is φ = 874012320.

The previous prime is 1949534641. The next prime is 1949534681. The reversal of 1949534642 is 2464359491.

It is not an unprimeable number, because it can be changed into a prime (1949534641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605348 + ... + 608559.

It is an arithmetic number, because the mean of its divisors is an integer number (202115682).

Almost surely, 2^1949534642 is an apocalyptic number.

1949534642 is a deficient number, since it is larger than the sum of its proper divisors (1284316270).

1949534642 is a wasteful number, since it uses less digits than its factorization.

1949534642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213993.

The product of its digits is 933120, while the sum is 47.

The square root of 1949534642 is about 44153.5348754774. The cubic root of 1949534642 is about 1249.2335871451.

The spelling of 1949534642 in words is "one billion, nine hundred forty-nine million, five hundred thirty-four thousand, six hundred forty-two".