2029997740 has 48 divisors (see below), whose sum is σ = 4383681120. Its totient is φ = 789163520.

The previous prime is 2029997737. The next prime is 2029997759. The reversal of 2029997740 is 477999202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215979 + ... + 225181.

It is an arithmetic number, because the mean of its divisors is an integer number (91326690).

Almost surely, 2^2029997740 is an apocalyptic number.

2029997740 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 2029997740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2191840560).

2029997740 is an abundant number, since it is smaller than the sum of its proper divisors (2353683380).

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

2029997740 is a wasteful number, since it uses less digits than its factorization.

2029997740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9522 (or 9520 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 2029997740 is about 45055.4962241012. The cubic root of 2029997740 is about 1266.1889471221.

The spelling of 2029997740 in words is "two billion, twenty-nine million, nine hundred ninety-seven thousand, seven hundred forty".