1949028340 has 48 divisors (see below), whose sum is σ = 4680547200. Its totient is φ = 667827072.

The previous prime is 1949028331. The next prime is 1949028377. The reversal of 1949028340 is 438209491.

It is a super-2 number, since 2×1949028340² = 7597422940246311200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1949028293 and 1949028302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301866 + ... + 308254.

It is an arithmetic number, because the mean of its divisors is an integer number (97511400).

Almost surely, 2^1949028340 is an apocalyptic number.

1949028340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1949028340 is an abundant number, since it is smaller than the sum of its proper divisors (2731518860).

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

1949028340 is a wasteful number, since it uses less digits than its factorization.

1949028340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8584 (or 8582 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 1949028340 is about 44147.8010777434. The cubic root of 1949028340 is about 1249.1254341170.

The spelling of 1949028340 in words is "one billion, nine hundred forty-nine million, twenty-eight thousand, three hundred forty".