3919721934 has 32 divisors (see below), whose sum is σ = 8051490720. Its totient is φ = 1271398400.

The previous prime is 3919721917. The next prime is 3919721941. The reversal of 3919721934 is 4391279193.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 75214 + ... + 116174.

It is an arithmetic number, because the mean of its divisors is an integer number (251609085).

Almost surely, 2^3919721934 is an apocalyptic number.

3919721934 is an abundant number, since it is smaller than the sum of its proper divisors (4131768786).

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

3919721934 is a wasteful number, since it uses less digits than its factorization.

3919721934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41396.

The product of its digits is 367416, while the sum is 48.

The square root of 3919721934 is about 62607.6827074761. The cubic root of 3919721934 is about 1576.7097494486.

The spelling of 3919721934 in words is "three billion, nine hundred nineteen million, seven hundred twenty-one thousand, nine hundred thirty-four".