2272339440 has 160 divisors (see below), whose sum is σ = 8945141760. Its totient is φ = 519388416.

The previous prime is 2272339397. The next prime is 2272339471. The reversal of 2272339440 is 449332722.

It is a happy number.

2272339440 is a `hidden beast` number, since 227 + 2 + 3 + 394 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2272339395 and 2272339404.

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, 60024 + ... + 90263.

It is an arithmetic number, because the mean of its divisors is an integer number (55907136).

Almost surely, 2^2272339440 is an apocalyptic number.

2272339440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2272339440 is an abundant number, since it is smaller than the sum of its proper divisors (6672802320).

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

2272339440 is a wasteful number, since it uses less digits than its factorization.

2272339440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150316 (or 150304 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 2272339440 is about 47669.0616647737. The cubic root of 2272339440 is about 1314.6931561045.

The spelling of 2272339440 in words is "two billion, two hundred seventy-two million, three hundred thirty-nine thousand, four hundred forty".