2670042440 has 128 divisors (see below), whose sum is σ = 6877301760. Its totient is φ = 924217344.

The previous prime is 2670042421. The next prime is 2670042461. The reversal of 2670042440 is 442400762.

2670042440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3243869 + ... + 3244691.

It is an arithmetic number, because the mean of its divisors is an integer number (53728920).

Almost surely, 2^2670042440 is an apocalyptic number.

2670042440 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 2670042440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3438650880).

2670042440 is an abundant number, since it is smaller than the sum of its proper divisors (4207259320).

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

2670042440 is a wasteful number, since it uses less digits than its factorization.

2670042440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 2670042440 is about 51672.4533963697. The cubic root of 2670042440 is about 1387.3074595799.

The spelling of 2670042440 in words is "two billion, six hundred seventy million, forty-two thousand, four hundred forty".