2279443540 has 24 divisors (see below), whose sum is σ = 5221998432. Its totient is φ = 828888480.

The previous prime is 2279443531. The next prime is 2279443541. The reversal of 2279443540 is 453449722.

2279443540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2279443493 and 2279443502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279443541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5180334 + ... + 5180773.

It is an arithmetic number, because the mean of its divisors is an integer number (217583268).

Almost surely, 2^2279443540 is an apocalyptic number.

2279443540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2279443540 is an abundant number, since it is smaller than the sum of its proper divisors (2942554892).

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

2279443540 is a wasteful number, since it uses less digits than its factorization.

2279443540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10361127 (or 10361125 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 2279443540 is about 47743.5183035352. The cubic root of 2279443540 is about 1316.0617889953.

The spelling of 2279443540 in words is "two billion, two hundred seventy-nine million, four hundred forty-three thousand, five hundred forty".