2801810140 has 24 divisors (see below), whose sum is σ = 5935875120. Its totient is φ = 1110805248.

The previous prime is 2801810117. The next prime is 2801810149. The reversal of 2801810140 is 410181082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801810149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617610 + ... + 622129.

It is an arithmetic number, because the mean of its divisors is an integer number (247328130).

Almost surely, 2^2801810140 is an apocalyptic number.

2801810140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2801810140 is an abundant number, since it is smaller than the sum of its proper divisors (3134064980).

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

2801810140 is a wasteful number, since it uses less digits than its factorization.

2801810140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239861 (or 1239859 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 2801810140 is about 52932.1276730872. The cubic root of 2801810140 is about 1409.7634094929.

The spelling of 2801810140 in words is "two billion, eight hundred one million, eight hundred ten thousand, one hundred forty".