1949499888 has 120 divisors (see below), whose sum is σ = 6203187792. Its totient is φ = 524224512.

The previous prime is 1949499869. The next prime is 1949499899. The reversal of 1949499888 is 8889949491.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15606 + ... + 64362.

Almost surely, 2^1949499888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1949499888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3101593896).

1949499888 is an abundant number, since it is smaller than the sum of its proper divisors (4253687904).

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

1949499888 is a wasteful number, since it uses less digits than its factorization.

1949499888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48799 (or 48786 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 69.

The square root of 1949499888 is about 44153.1413151998. The cubic root of 1949499888 is about 1249.2261638142.

The spelling of 1949499888 in words is "one billion, nine hundred forty-nine million, four hundred ninety-nine thousand, eight hundred eighty-eight".