1949743092 has 24 divisors (see below), whose sum is σ = 4962982752. Its totient is φ = 590831200.

The previous prime is 1949743031. The next prime is 1949743099. The reversal of 1949743092 is 2903479491.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949743099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7385259 + ... + 7385522.

It is an arithmetic number, because the mean of its divisors is an integer number (206790948).

Almost surely, 2^1949743092 is an apocalyptic number.

1949743092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1949743092 is an abundant number, since it is smaller than the sum of its proper divisors (3013239660).

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

1949743092 is a wasteful number, since it uses less digits than its factorization.

1949743092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14770799 (or 14770797 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 1949743092 is about 44155.8953255395. The cubic root of 1949743092 is about 1249.2781094728.

The spelling of 1949743092 in words is "one billion, nine hundred forty-nine million, seven hundred forty-three thousand, ninety-two".