2055401684 has 48 divisors (see below), whose sum is σ = 4358901120. Its totient is φ = 828403200.

The previous prime is 2055401681. The next prime is 2055401723. The reversal of 2055401684 is 4861045502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055401681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58784 + ... + 86984.

It is an arithmetic number, because the mean of its divisors is an integer number (90810440).

Almost surely, 2^2055401684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2055401684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2179450560).

2055401684 is an abundant number, since it is smaller than the sum of its proper divisors (2303499436).

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

2055401684 is a wasteful number, since it uses less digits than its factorization.

2055401684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28368 (or 28366 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 2055401684 is about 45336.5380680969. The cubic root of 2055401684 is about 1271.4488773499.

The spelling of 2055401684 in words is "two billion, fifty-five million, four hundred one thousand, six hundred eighty-four".