2078893440 has 192 divisors, whose sum is σ = 7731163440. Its totient is φ = 511709184.

The previous prime is 2078893339. The next prime is 2078893441. The reversal of 2078893440 is 443988702.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2078893441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60999 + ... + 88761.

Almost surely, 2^2078893440 is an apocalyptic number.

2078893440 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 2078893440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3865581720).

2078893440 is an abundant number, since it is smaller than the sum of its proper divisors (5652270000).

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

2078893440 is a wasteful number, since it uses less digits than its factorization.

2078893440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27801 (or 27786 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 2078893440 is about 45594.8839235281. The cubic root of 2078893440 is about 1276.2744534654.

The spelling of 2078893440 in words is "two billion, seventy-eight million, eight hundred ninety-three thousand, four hundred forty".