2288215440 has 160 divisors (see below), whose sum is σ = 9007637760. Its totient is φ = 523017216.

The previous prime is 2288215439. The next prime is 2288215471. The reversal of 2288215440 is 445128822.

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 = 2288215395 and 2288215404.

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, 60549 + ... + 90788.

It is an arithmetic number, because the mean of its divisors is an integer number (56297736).

Almost surely, 2^2288215440 is an apocalyptic number.

2288215440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2288215440 is an abundant number, since it is smaller than the sum of its proper divisors (6719422320).

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

2288215440 is a wasteful number, since it uses less digits than its factorization.

2288215440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151366 (or 151354 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

The square root of 2288215440 is about 47835.2949191285. The cubic root of 2288215440 is about 1317.7478123894.

The spelling of 2288215440 in words is "two billion, two hundred eighty-eight million, two hundred fifteen thousand, four hundred forty".