2794734640 has 80 divisors (see below), whose sum is σ = 6788940480. Its totient is φ = 1068569600.

The previous prime is 2794734637. The next prime is 2794734641. The reversal of 2794734640 is 464374972.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2794734641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228357 + ... + 240283.

It is an arithmetic number, because the mean of its divisors is an integer number (84861756).

Almost surely, 2^2794734640 is an apocalyptic number.

2794734640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2794734640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3394470240).

2794734640 is an abundant number, since it is smaller than the sum of its proper divisors (3994205840).

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

2794734640 is a wasteful number, since it uses less digits than its factorization.

2794734640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12070 (or 12064 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 46.

The square root of 2794734640 is about 52865.2498338937. The cubic root of 2794734640 is about 1408.5757023978.

The spelling of 2794734640 in words is "two billion, seven hundred ninety-four million, seven hundred thirty-four thousand, six hundred forty".