4180208540 has 24 divisors (see below), whose sum is σ = 9294817392. Its totient is φ = 1573725440.

The previous prime is 4180208537. The next prime is 4180208551. The reversal of 4180208540 is 458020814.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4180208497 and 4180208506.

It is a congruent number.

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, 6147026 + ... + 6147705.

It is an arithmetic number, because the mean of its divisors is an integer number (387284058).

Almost surely, 2^4180208540 is an apocalyptic number.

It is an amenable number.

4180208540 is an abundant number, since it is smaller than the sum of its proper divisors (5114608852).

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

4180208540 is a wasteful number, since it uses less digits than its factorization.

4180208540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12294757 (or 12294755 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 4180208540 is about 64654.5322463940. The cubic root of 4180208540 is about 1610.8903604994.

The spelling of 4180208540 in words is "four billion, one hundred eighty million, two hundred eight thousand, five hundred forty".