2801111040 has 624 divisors, whose sum is σ = 12021504768. Its totient is φ = 587464704.

The previous prime is 2801111039. The next prime is 2801111069. The reversal of 2801111040 is 401111082.

It is a tau number, because it is divible by the number of its divisors (624).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16773037 + ... + 16773203.

It is an arithmetic number, because the mean of its divisors is an integer number (19265232).

Almost surely, 2^2801111040 is an apocalyptic number.

2801111040 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 2801111040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6010752384).

2801111040 is an abundant number, since it is smaller than the sum of its proper divisors (9220393728).

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

2801111040 is a wasteful number, since it uses less digits than its factorization.

2801111040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 2801111040 is about 52925.5235212652. The cubic root of 2801111040 is about 1409.6461463031.

The spelling of 2801111040 in words is "two billion, eight hundred one million, one hundred eleven thousand, forty".