1949337428 has 12 divisors (see below), whose sum is σ = 3528973140. Its totient is φ = 941059392.

The previous prime is 1949337427. The next prime is 1949337431. The reversal of 1949337428 is 8247339491.

It can be written as a sum of positive squares in 2 ways, for example, as 1601440324 + 347897104 = 40018^2 + 18652^2 .

It is a super-3 number, since 3×1949337428³ (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 (1949337421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8402201 + ... + 8402432.

It is an arithmetic number, because the mean of its divisors is an integer number (294081095).

Almost surely, 2^1949337428 is an apocalyptic number.

It is an amenable number.

1949337428 is a deficient number, since it is larger than the sum of its proper divisors (1579635712).

1949337428 is a wasteful number, since it uses less digits than its factorization.

1949337428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16804666 (or 16804664 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 50.

The square root of 1949337428 is about 44151.3015436691. The cubic root of 1949337428 is about 1249.1914617655.

The spelling of 1949337428 in words is "one billion, nine hundred forty-nine million, three hundred thirty-seven thousand, four hundred twenty-eight".