2691234 has 96 divisors (see below), whose sum is σ = 7547904. Its totient is φ = 673920.

The previous prime is 2691233. The next prime is 2691239. The reversal of 2691234 is 4321962.

2691234 = T₃₆ + T₃₇ + ... + T₂₅₂.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2691198 and 2691207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2691233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50752 + ... + 50804.

It is an arithmetic number, because the mean of its divisors is an integer number (78624).

2^2691234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2691234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3773952).

2691234 is an abundant number, since it is smaller than the sum of its proper divisors (4856670).

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

2691234 is a wasteful number, since it uses less digits than its factorization.

2691234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 109 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 2691234 is about 1640.4980950919. The cubic root of 2691234 is about 139.0968047086.

The spelling of 2691234 in words is "two million, six hundred ninety-one thousand, two hundred thirty-four".