1939134408 has 16 divisors (see below), whose sum is σ = 4847836080. Its totient is φ = 646378128.

The previous prime is 1939134389. The next prime is 1939134409. The reversal of 1939134408 is 8044319391.

It is a self number, because there is not a number n which added to its sum of digits gives 1939134408.

It is not an unprimeable number, because it can be changed into a prime (1939134409) 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 3 ways as a sum of consecutive naturals, for example, 40398610 + ... + 40398657.

It is an arithmetic number, because the mean of its divisors is an integer number (302989755).

Almost surely, 2^1939134408 is an apocalyptic number.

It is an amenable number.

1939134408 is an abundant number, since it is smaller than the sum of its proper divisors (2908701672).

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

1939134408 is a wasteful number, since it uses less digits than its factorization.

1939134408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80797276 (or 80797272 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 1939134408 is about 44035.6038677795. The cubic root of 1939134408 is about 1247.0081853223.

The spelling of 1939134408 in words is "one billion, nine hundred thirty-nine million, one hundred thirty-four thousand, four hundred eight".