2094901840 has 80 divisors (see below), whose sum is σ = 5176329408. Its totient is φ = 785737728.

The previous prime is 2094901817. The next prime is 2094901841. The reversal of 2094901840 is 481094902.

It is a happy number.

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

It is a super-2 number, since 2×2094901840² = 8777227438470771200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2094901840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2094901841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382159 + ... + 387601.

Almost surely, 2^2094901840 is an apocalyptic number.

2094901840 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 2094901840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2588164704).

2094901840 is an abundant number, since it is smaller than the sum of its proper divisors (3081427568).

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

2094901840 is a wasteful number, since it uses less digits than its factorization.

2094901840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5756 (or 5750 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 2094901840 is about 45770.0976621200. The cubic root of 2094901840 is about 1279.5420399460.

The spelling of 2094901840 in words is "two billion, ninety-four million, nine hundred one thousand, eight hundred forty".