2669091440 has 20 divisors (see below), whose sum is σ = 6205637784. Its totient is φ = 1067636544.

The previous prime is 2669091433. The next prime is 2669091457. The reversal of 2669091440 is 441909662.

2669091440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

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, 16681742 + ... + 16681901.

Almost surely, 2^2669091440 is an apocalyptic number.

2669091440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2669091440 is an abundant number, since it is smaller than the sum of its proper divisors (3536546344).

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

2669091440 is a wasteful number, since it uses less digits than its factorization.

2669091440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33363656 (or 33363650 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 2669091440 is about 51663.2503816785. The cubic root of 2669091440 is about 1387.1427323528.

The spelling of 2669091440 in words is "two billion, six hundred sixty-nine million, ninety-one thousand, four hundred forty".