2084694840 has 128 divisors (see below), whose sum is σ = 7004160000. Its totient is φ = 551505024.

The previous prime is 2084694791. The next prime is 2084694847. The reversal of 2084694840 is 484964802.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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 (2084694847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129561 + ... + 144759.

It is an arithmetic number, because the mean of its divisors is an integer number (54720000).

Almost surely, 2^2084694840 is an apocalyptic number.

2084694840 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 2084694840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3502080000).

2084694840 is an abundant number, since it is smaller than the sum of its proper divisors (4919465160).

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

2084694840 is a wasteful number, since it uses less digits than its factorization.

2084694840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15346 (or 15336 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 2084694840 is about 45658.4585810778. The cubic root of 2084694840 is about 1277.4605495098.

The spelling of 2084694840 in words is "two billion, eighty-four million, six hundred ninety-four thousand, eight hundred forty".