2591632 has 10 divisors (see below), whose sum is σ = 5021318. Its totient is φ = 1295808.

The previous prime is 2591623. The next prime is 2591669. The reversal of 2591632 is 2361952.

It can be written as a sum of positive squares in only one way, i.e., 2202256 + 389376 = 1484^2 + 624^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2591632.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80973 + ... + 81004.

2^2591632 is an apocalyptic number.

It is an amenable number.

2591632 is a deficient number, since it is larger than the sum of its proper divisors (2429686).

2591632 is a wasteful number, since it uses less digits than its factorization.

2591632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161985 (or 161979 counting only the distinct ones).

The product of its digits is 3240, while the sum is 28.

The square root of 2591632 is about 1609.8546518242. The cubic root of 2591632 is about 137.3592079524.

It can be divided in two parts, 2591 and 632, that added together give a palindrome (3223).

The spelling of 2591632 in words is "two million, five hundred ninety-one thousand, six hundred thirty-two".