2284279920 has 160 divisors (see below), whose sum is σ = 8473416000. Its totient is φ = 562277376.

The previous prime is 2284279849. The next prime is 2284279939. The reversal of 2284279920 is 299724822.

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 31 ways as a sum of consecutive naturals, for example, 12595 + ... + 68754.

It is an arithmetic number, because the mean of its divisors is an integer number (52958850).

Almost surely, 2^2284279920 is an apocalyptic number.

2284279920 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 2284279920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4236708000).

2284279920 is an abundant number, since it is smaller than the sum of its proper divisors (6189136080).

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

2284279920 is a wasteful number, since it uses less digits than its factorization.

2284279920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81384 (or 81372 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 2284279920 is about 47794.1410635237. The cubic root of 2284279920 is about 1316.9919105361.

The spelling of 2284279920 in words is "two billion, two hundred eighty-four million, two hundred seventy-nine thousand, nine hundred twenty".