1949924817 has 12 divisors (see below), whose sum is σ = 2817092304. Its totient is φ = 1299703320.

The previous prime is 1949924813. The next prime is 1949924819. The reversal of 1949924817 is 7184299491.

It is not a de Polignac number, because 1949924817 - 2² = 1949924813 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1949924813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38458 + ... + 73340.

It is an arithmetic number, because the mean of its divisors is an integer number (234757692).

Almost surely, 2^1949924817 is an apocalyptic number.

It is an amenable number.

1949924817 is a deficient number, since it is larger than the sum of its proper divisors (867167487).

1949924817 is a wasteful number, since it uses less digits than its factorization.

1949924817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41100 (or 41097 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 1949924817 is about 44157.9530435911. The cubic root of 1949924817 is about 1249.3169210839.

It can be divided in two parts, 194992 and 4817, that added together give a square (199809 = 447²).

The spelling of 1949924817 in words is "one billion, nine hundred forty-nine million, nine hundred twenty-four thousand, eight hundred seventeen".