2391634 has 16 divisors (see below), whose sum is σ = 4132800. Its totient is φ = 1016784.

The previous prime is 2391629. The next prime is 2391637. The reversal of 2391634 is 4361932.

2391634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2391637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1332 + ... + 2560.

It is an arithmetic number, because the mean of its divisors is an integer number (258300).

2^2391634 is an apocalyptic number.

2391634 is a deficient number, since it is larger than the sum of its proper divisors (1741166).

2391634 is a wasteful number, since it uses less digits than its factorization.

2391634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377.

The product of its digits is 3888, while the sum is 28.

The square root of 2391634 is about 1546.4908664457. The cubic root of 2391634 is about 133.7308401238.

It can be divided in two parts, 2391 and 634, that added together give a square (3025 = 55²).

The spelling of 2391634 in words is "two million, three hundred ninety-one thousand, six hundred thirty-four".