2709438 has 16 divisors (see below), whose sum is σ = 5704320. Its totient is φ = 855576.

The previous prime is 2709397. The next prime is 2709467. The reversal of 2709438 is 8349072.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2709399 and 2709408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11770 + ... + 11997.

It is an arithmetic number, because the mean of its divisors is an integer number (356520).

2^2709438 is an apocalyptic number.

2709438 is an abundant number, since it is smaller than the sum of its proper divisors (2994882).

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

2709438 is a wasteful number, since it uses less digits than its factorization.

2709438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23791.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 2709438 is about 1646.0370591211. The cubic root of 2709438 is about 139.4097256405.

The spelling of 2709438 in words is "two million, seven hundred nine thousand, four hundred thirty-eight".