2638734 has 16 divisors (see below), whose sum is σ = 6031488. Its totient is φ = 753912.

The previous prime is 2638717. The next prime is 2638747. The reversal of 2638734 is 4378362.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2638695 and 2638704.

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, 31372 + ... + 31455.

It is an arithmetic number, because the mean of its divisors is an integer number (376968).

2^2638734 is an apocalyptic number.

2638734 is an abundant number, since it is smaller than the sum of its proper divisors (3392754).

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

2638734 is a wasteful number, since it uses less digits than its factorization.

2638734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62839.

The product of its digits is 24192, while the sum is 33.

The square root of 2638734 is about 1624.4180496412. The cubic root of 2638734 is about 138.1863686542.

The spelling of 2638734 in words is "two million, six hundred thirty-eight thousand, seven hundred thirty-four".