2199337640 has 32 divisors (see below), whose sum is σ = 4980043080. Its totient is φ = 874129152.

The previous prime is 2199337639. The next prime is 2199337663. The reversal of 2199337640 is 467339912.

It can be written as a sum of positive squares in 4 ways, for example, as 1875409636 + 323928004 = 43306^2 + 17998^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2199337591 and 2199337600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168827 + ... + 181386.

Almost surely, 2^2199337640 is an apocalyptic number.

2199337640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2199337640 is an abundant number, since it is smaller than the sum of its proper divisors (2780705440).

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

2199337640 is a wasteful number, since it uses less digits than its factorization.

2199337640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350381 (or 350377 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 2199337640 is about 46897.0962853778. The cubic root of 2199337640 is about 1300.4609095454.

The spelling of 2199337640 in words is "two billion, one hundred ninety-nine million, three hundred thirty-seven thousand, six hundred forty".