2279946240 has 576 divisors, whose sum is σ = 9336993120. Its totient is φ = 507248640.

The previous prime is 2279946239. The next prime is 2279946259. The reversal of 2279946240 is 426499722.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (576).

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 47 ways as a sum of consecutive naturals, for example, 13178794 + ... + 13178966.

Almost surely, 2^2279946240 is an apocalyptic number.

2279946240 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 2279946240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4668496560).

2279946240 is an abundant number, since it is smaller than the sum of its proper divisors (7057046880).

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

2279946240 is a wasteful number, since it uses less digits than its factorization.

2279946240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 2279946240 is about 47748.7826022821. The cubic root of 2279946240 is about 1316.1585283414.

The spelling of 2279946240 in words is "two billion, two hundred seventy-nine million, nine hundred forty-six thousand, two hundred forty".