2666432 has 28 divisors (see below), whose sum is σ = 5385816. Its totient is φ = 1309440.

The previous prime is 2666429. The next prime is 2666453. The reversal of 2666432 is 2346662.

It is a super-2 number, since 2×2666432² = 14219719221248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2666395 and 2666404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3563 + ... + 4245.

2^2666432 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 2666432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2692908).

2666432 is an abundant number, since it is smaller than the sum of its proper divisors (2719384).

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

2666432 is an equidigital number, since it uses as much as digits as its factorization.

2666432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 746 counting only the distinct ones).

The product of its digits is 10368, while the sum is 29.

The square root of 2666432 is about 1632.9213085755. The cubic root of 2666432 is about 138.6681870313.

The spelling of 2666432 in words is "two million, six hundred sixty-six thousand, four hundred thirty-two".