3919011940 has 24 divisors (see below), whose sum is σ = 8495407872. Its totient is φ = 1517036640.

The previous prime is 3919011923. The next prime is 3919011949. The reversal of 3919011940 is 491109193.

It is a self number, because there is not a number n which added to its sum of digits gives 3919011940.

It is not an unprimeable number, because it can be changed into a prime (3919011949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3159874 + ... + 3161113.

It is an arithmetic number, because the mean of its divisors is an integer number (353975328).

Almost surely, 2^3919011940 is an apocalyptic number.

It is an amenable number.

3919011940 is an abundant number, since it is smaller than the sum of its proper divisors (4576395932).

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

3919011940 is a wasteful number, since it uses less digits than its factorization.

3919011940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321027 (or 6321025 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 3919011940 is about 62602.0122679775. The cubic root of 3919011940 is about 1576.6145452413.

The spelling of 3919011940 in words is "three billion, nine hundred nineteen million, eleven thousand, nine hundred forty".