1929049218 has 12 divisors (see below), whose sum is σ = 4179606678. Its totient is φ = 643016400.

The previous prime is 1929049217. The next prime is 1929049237. The reversal of 1929049218 is 8129409291.

It can be written as a sum of positive squares in only one way, i.e., 1012957929 + 916091289 = 31827^2 + 30267^2 .

It is not an unprimeable number, because it can be changed into a prime (1929049217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53584683 + ... + 53584718.

Almost surely, 2^1929049218 is an apocalyptic number.

1929049218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1929049218 is an abundant number, since it is smaller than the sum of its proper divisors (2250557460).

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

1929049218 is a wasteful number, since it uses less digits than its factorization.

1929049218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107169409 (or 107169406 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 1929049218 is about 43920.9428177493. The cubic root of 1929049218 is about 1244.8425832810.

The spelling of 1929049218 in words is "one billion, nine hundred twenty-nine million, forty-nine thousand, two hundred eighteen".