2177005240 has 16 divisors (see below), whose sum is σ = 4898261880. Its totient is φ = 870802080.

The previous prime is 2177005231. The next prime is 2177005253. The reversal of 2177005240 is 425007712.

It is a junction number, because it is equal to n+sod(n) for n = 2177005199 and 2177005208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27212526 + ... + 27212605.

Almost surely, 2^2177005240 is an apocalyptic number.

2177005240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2177005240 is an abundant number, since it is smaller than the sum of its proper divisors (2721256640).

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

2177005240 is a wasteful number, since it uses less digits than its factorization.

2177005240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54425142 (or 54425138 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 2177005240 is about 46658.3887420044. The cubic root of 2177005240 is about 1296.0442355856.

The spelling of 2177005240 in words is "two billion, one hundred seventy-seven million, five thousand, two hundred forty".