1949090547 has 16 divisors (see below), whose sum is σ = 2781936000. Its totient is φ = 1210137984.

The previous prime is 1949090537. The next prime is 1949090569. The reversal of 1949090547 is 7450909491.

It is not a de Polignac number, because 1949090547 - 2⁷ = 1949090419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1949090496 and 1949090505.

It is not an unprimeable number, because it can be changed into a prime (1949090537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286422 + ... + 293147.

It is an arithmetic number, because the mean of its divisors is an integer number (173871000).

Almost surely, 2^1949090547 is an apocalyptic number.

1949090547 is a deficient number, since it is larger than the sum of its proper divisors (832845453).

1949090547 is a wasteful number, since it uses less digits than its factorization.

1949090547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579650.

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 1949090547 is about 44148.5056032478. The cubic root of 1949090547 is about 1249.1387233917.

The spelling of 1949090547 in words is "one billion, nine hundred forty-nine million, ninety thousand, five hundred forty-seven".