2170250040 has 64 divisors (see below), whose sum is σ = 7440860160. Its totient is φ = 496056960.

The previous prime is 2170249999. The next prime is 2170250083. The reversal of 2170250040 is 400520712.

It is a super-2 number, since 2×2170250040² = 9419970472240003200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2170249989 and 2170250016.

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, 1290976 + ... + 1292655.

It is an arithmetic number, because the mean of its divisors is an integer number (116263440).

Almost surely, 2^2170250040 is an apocalyptic number.

2170250040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2170250040 is an abundant number, since it is smaller than the sum of its proper divisors (5270610120).

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

2170250040 is a wasteful number, since it uses less digits than its factorization.

2170250040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583652 (or 2583648 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2170250040 is about 46585.9425148832. The cubic root of 2170250040 is about 1294.7023142669.

Adding to 2170250040 its reverse (400520712), we get a palindrome (2570770752).

The spelling of 2170250040 in words is "two billion, one hundred seventy million, two hundred fifty thousand, forty".