1911944034 has 384 divisors, whose sum is σ = 6030581760. Its totient is φ = 440899200.

The previous prime is 1911944033. The next prime is 1911944051. The reversal of 1911944034 is 4304491191.

It is a self number, because there is not a number n which added to its sum of digits gives 1911944034.

It is not an unprimeable number, because it can be changed into a prime (1911944033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 11729637 + ... + 11729799.

It is an arithmetic number, because the mean of its divisors is an integer number (15704640).

Almost surely, 2^1911944034 is an apocalyptic number.

1911944034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1911944034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3015290880).

1911944034 is an abundant number, since it is smaller than the sum of its proper divisors (4118637726).

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

1911944034 is a wasteful number, since it uses less digits than its factorization.

1911944034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1911944034 is about 43725.7822571535. The cubic root of 1911944034 is about 1241.1522488532.

The spelling of 1911944034 in words is "one billion, nine hundred eleven million, nine hundred forty-four thousand, thirty-four".