2172503340 has 72 divisors (see below), whose sum is σ = 7531349280. Its totient is φ = 496571904.

The previous prime is 2172503327. The next prime is 2172503351. The reversal of 2172503340 is 433052712.

It is a super-2 number, since 2×2172503340² = 9439541524622311200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 860845 + ... + 863364.

Almost surely, 2^2172503340 is an apocalyptic number.

2172503340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2172503340 is an abundant number, since it is smaller than the sum of its proper divisors (5358845940).

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

2172503340 is a wasteful number, since it uses less digits than its factorization.

2172503340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724231 (or 1724226 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 2172503340 is about 46610.1205748280. The cubic root of 2172503340 is about 1295.1502417082.

The spelling of 2172503340 in words is "two billion, one hundred seventy-two million, five hundred three thousand, three hundred forty".