2667530840 has 128 divisors (see below), whose sum is σ = 6869016000. Its totient is φ = 924162048.

The previous prime is 2667530813. The next prime is 2667530851. The reversal of 2667530840 is 480357662.

It is a happy number.

It is a super-2 number, since 2×2667530840² = 14231441564702211200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1075682 + ... + 1078158.

Almost surely, 2^2667530840 is an apocalyptic number.

2667530840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2667530840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3434508000).

2667530840 is an abundant number, since it is smaller than the sum of its proper divisors (4201485160).

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

2667530840 is a wasteful number, since it uses less digits than its factorization.

2667530840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2629 (or 2625 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 2667530840 is about 51648.1445939736. The cubic root of 2667530840 is about 1386.8723286039.

The spelling of 2667530840 in words is "two billion, six hundred sixty-seven million, five hundred thirty thousand, eight hundred forty".