2199481440 has 96 divisors (see below), whose sum is σ = 7461338976. Its totient is φ = 541409280.

The previous prime is 2199481337. The next prime is 2199481457. The reversal of 2199481440 is 441849912.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 2199481392 and 2199481401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170001 + ... + 182480.

It is an arithmetic number, because the mean of its divisors is an integer number (77722281).

Almost surely, 2^2199481440 is an apocalyptic number.

2199481440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2199481440 is an abundant number, since it is smaller than the sum of its proper divisors (5261857536).

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

2199481440 is a wasteful number, since it uses less digits than its factorization.

2199481440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352512 (or 352504 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 2199481440 is about 46898.6294042800. The cubic root of 2199481440 is about 1300.4892517457.

The spelling of 2199481440 in words is "two billion, one hundred ninety-nine million, four hundred eighty-one thousand, four hundred forty".