1949090973 has 8 divisors (see below), whose sum is σ = 2611848000. Its totient is φ = 1292863968.

The previous prime is 1949090963. The next prime is 1949090977. The reversal of 1949090973 is 3790909491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1949090973 - 2⁹ = 1949090461 is a prime.

It is a super-3 number, since 3×1949090973³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949090977) 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, 1631808 + ... + 1633001.

It is an arithmetic number, because the mean of its divisors is an integer number (326481000).

Almost surely, 2^1949090973 is an apocalyptic number.

It is an amenable number.

1949090973 is a deficient number, since it is larger than the sum of its proper divisors (662757027).

1949090973 is a wasteful number, since it uses less digits than its factorization.

1949090973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3265011.

The product of its (nonzero) digits is 551124, while the sum is 51.

The square root of 1949090973 is about 44148.5104278729. The cubic root of 1949090973 is about 1249.1388143971.

The spelling of 1949090973 in words is "one billion, nine hundred forty-nine million, ninety thousand, nine hundred seventy-three".