2739720 has 96 divisors (see below), whose sum is σ = 8841600. Its totient is φ = 678912.

The previous prime is 2739719. The next prime is 2739721. The reversal of 2739720 is 279372.

It is an interprime number because it is at equal distance from previous prime (2739719) and next prime (2739721).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2739721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34641 + ... + 34719.

It is an arithmetic number, because the mean of its divisors is an integer number (92100).

2^2739720 is an apocalyptic number.

2739720 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 2739720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4420800).

2739720 is an abundant number, since it is smaller than the sum of its proper divisors (6101880).

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

2739720 is a wasteful number, since it uses less digits than its factorization.

2739720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 2739720 is about 1655.2099564708. The cubic root of 2739720 is about 139.9271730068.

The spelling of 2739720 in words is "two million, seven hundred thirty-nine thousand, seven hundred twenty".