1919240752 has 80 divisors (see below), whose sum is σ = 4509711360. Its totient is φ = 779270400.

The previous prime is 1919240747. The next prime is 1919240761. The reversal of 1919240752 is 2570429191.

It is a happy number.

It is an unprimeable number.

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, 57399 + ... + 84457.

It is an arithmetic number, because the mean of its divisors is an integer number (56371392).

Almost surely, 2^1919240752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1919240752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2254855680).

1919240752 is an abundant number, since it is smaller than the sum of its proper divisors (2590470608).

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

1919240752 is a wasteful number, since it uses less digits than its factorization.

1919240752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27122 (or 27116 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 1919240752 is about 43809.1400509072. The cubic root of 1919240752 is about 1242.7291502215.

The spelling of 1919240752 in words is "one billion, nine hundred nineteen million, two hundred forty thousand, seven hundred fifty-two".