2149701736 has 80 divisors (see below), whose sum is σ = 5064488100. Its totient is φ = 850332672.

The previous prime is 2149701733. The next prime is 2149701751. The reversal of 2149701736 is 6371079412.

It can be written as a sum of positive squares in 2 ways, for example, as 1918965636 + 230736100 = 43806^2 + 15190^2 .

It is a super-2 number, since 2×2149701736² = 9242435107522827392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2149701733) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 245400 + ... + 254008.

Almost surely, 2^2149701736 is an apocalyptic number.

2149701736 is a gapful number since it is divisible by the number (26) 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 2149701736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2532244050).

2149701736 is an abundant number, since it is smaller than the sum of its proper divisors (2914786364).

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

2149701736 is an equidigital number, since it uses as much as digits as its factorization.

2149701736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8656 (or 8631 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 2149701736 is about 46364.8761024981. The cubic root of 2149701736 is about 1290.6031944607.

The spelling of 2149701736 in words is "two billion, one hundred forty-nine million, seven hundred one thousand, seven hundred thirty-six".