2729790 has 72 divisors (see below), whose sum is σ = 8269560. Its totient is φ = 622944.

The previous prime is 2729777. The next prime is 2729803. The reversal of 2729790 is 979272.

It is an interprime number because it is at equal distance from previous prime (2729777) and next prime (2729803).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4101 + ... + 4719.

It is an arithmetic number, because the mean of its divisors is an integer number (114855).

2^2729790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2729790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4134780).

2729790 is an abundant number, since it is smaller than the sum of its proper divisors (5539770).

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

2729790 is a wasteful number, since it uses less digits than its factorization.

2729790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 2729790 is about 1652.2076140728. The cubic root of 2729790 is about 139.7579149663.

The spelling of 2729790 in words is "two million, seven hundred twenty-nine thousand, seven hundred ninety".