1949277144 has 16 divisors (see below), whose sum is σ = 4873192920. Its totient is φ = 649759040.

The previous prime is 1949277131. The next prime is 1949277149. The reversal of 1949277144 is 4417729491.

It is a junction number, because it is equal to n+sod(n) for n = 1949277093 and 1949277102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949277149) 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, 40609917 + ... + 40609964.

Almost surely, 2^1949277144 is an apocalyptic number.

It is an amenable number.

1949277144 is an abundant number, since it is smaller than the sum of its proper divisors (2923915776).

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

1949277144 is a wasteful number, since it uses less digits than its factorization.

1949277144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81219890 (or 81219886 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 1949277144 is about 44150.6188405100. The cubic root of 1949277144 is about 1249.1785843927.

The spelling of 1949277144 in words is "one billion, nine hundred forty-nine million, two hundred seventy-seven thousand, one hundred forty-four".