1939292290 has 32 divisors (see below), whose sum is σ = 3761835840. Its totient is φ = 715552704.

The previous prime is 1939292281. The next prime is 1939292293. The reversal of 1939292290 is 922929391.

It is a self number, because there is not a number n which added to its sum of digits gives 1939292290.

It is not an unprimeable number, because it can be changed into a prime (1939292293) 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 15 ways as a sum of consecutive naturals, for example, 222841 + ... + 231379.

It is an arithmetic number, because the mean of its divisors is an integer number (117557370).

Almost surely, 2^1939292290 is an apocalyptic number.

1939292290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1939292290 is a deficient number, since it is larger than the sum of its proper divisors (1822543550).

1939292290 is a wasteful number, since it uses less digits than its factorization.

1939292290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10306.

The product of its (nonzero) digits is 157464, while the sum is 46.

The square root of 1939292290 is about 44037.3964943433. The cubic root of 1939292290 is about 1247.0420277079.

The spelling of 1939292290 in words is "one billion, nine hundred thirty-nine million, two hundred ninety-two thousand, two hundred ninety".