1959889492 has 12 divisors (see below), whose sum is σ = 3741607296. Its totient is φ = 890858840.

The previous prime is 1959889487. The next prime is 1959889499. The reversal of 1959889492 is 2949889591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1959889499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22271428 + ... + 22271515.

It is an arithmetic number, because the mean of its divisors is an integer number (311800608).

Almost surely, 2^1959889492 is an apocalyptic number.

It is an amenable number.

1959889492 is a deficient number, since it is larger than the sum of its proper divisors (1781717804).

1959889492 is a wasteful number, since it uses less digits than its factorization.

1959889492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44542958 (or 44542956 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 64.

The square root of 1959889492 is about 44270.6391641232. The cubic root of 1959889492 is about 1251.4414288141.

Subtracting 1959889492 from its reverse (2949889591), we obtain a palindrome (990000099).

The spelling of 1959889492 in words is "one billion, nine hundred fifty-nine million, eight hundred eighty-nine thousand, four hundred ninety-two".