2691432 has 48 divisors (see below), whose sum is σ = 7546500. Its totient is φ = 865536.

The previous prime is 2691431. The next prime is 2691433. The reversal of 2691432 is 2341962.

It is an interprime number because it is at equal distance from previous prime (2691431) and next prime (2691433).

It can be written as a sum of positive squares in 2 ways, for example, as 2604996 + 86436 = 1614^2 + 294^2 .

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2691396 and 2691405.

It is not an unprimeable number, because it can be changed into a prime (2691431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1444 + ... + 2732.

2^2691432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2691432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3773250).

2691432 is an abundant number, since it is smaller than the sum of its proper divisors (4855068).

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

2691432 is a wasteful number, since it uses less digits than its factorization.

2691432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330 (or 1323 counting only the distinct ones).

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

The square root of 2691432 is about 1640.5584415070. The cubic root of 2691432 is about 139.1002158441.

The spelling of 2691432 in words is "two million, six hundred ninety-one thousand, four hundred thirty-two".