1929919490 has 32 divisors (see below), whose sum is σ = 3662608320. Its totient is φ = 730154304.

The previous prime is 1929919483. The next prime is 1929919513. The reversal of 1929919490 is 949199291.

It is a super-3 number, since 3×1929919490³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114272 + ... + 130068.

It is an arithmetic number, because the mean of its divisors is an integer number (114456510).

Almost surely, 2^1929919490 is an apocalyptic number.

1929919490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1929919490 is a deficient number, since it is larger than the sum of its proper divisors (1732688830).

1929919490 is a wasteful number, since it uses less digits than its factorization.

1929919490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16466.

The product of its (nonzero) digits is 472392, while the sum is 53.

The square root of 1929919490 is about 43930.8489560582. The cubic root of 1929919490 is about 1245.0297547229.

The spelling of 1929919490 in words is "one billion, nine hundred twenty-nine million, nine hundred nineteen thousand, four hundred ninety".