2709144 has 48 divisors (see below), whose sum is σ = 7413120. Its totient is φ = 893760.

The previous prime is 2709107. The next prime is 2709167. The reversal of 2709144 is 4419072.

It is a happy number.

It is a super-2 number, since 2×2709144² = 14678922425472, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13654 + ... + 13850.

It is an arithmetic number, because the mean of its divisors is an integer number (154440).

2^2709144 is an apocalyptic number.

2709144 is a gapful number since it is divisible by the number (24) 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 2709144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3706560).

2709144 is an abundant number, since it is smaller than the sum of its proper divisors (4703976).

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

2709144 is a wasteful number, since it uses less digits than its factorization.

2709144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2709144 is about 1645.9477512971. The cubic root of 2709144 is about 139.4046830275.

The spelling of 2709144 in words is "two million, seven hundred nine thousand, one hundred forty-four".