2279706840 has 96 divisors (see below), whose sum is σ = 7416208800. Its totient is φ = 607334400.

The previous prime is 2279706839. The next prime is 2279706857. The reversal of 2279706840 is 486079722.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 472440 + ... + 477240.

It is an arithmetic number, because the mean of its divisors is an integer number (77252175).

Almost surely, 2^2279706840 is an apocalyptic number.

2279706840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2279706840 is an abundant number, since it is smaller than the sum of its proper divisors (5136501960).

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

2279706840 is a wasteful number, since it uses less digits than its factorization.

2279706840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6137 (or 6130 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 2279706840 is about 47746.2756662758. The cubic root of 2279706840 is about 1316.1124600943.

The spelling of 2279706840 in words is "two billion, two hundred seventy-nine million, seven hundred six thousand, eight hundred forty".