4155980 has 12 divisors (see below), whose sum is σ = 8727600. Its totient is φ = 1662384.

The previous prime is 4155929. The next prime is 4155989. The reversal of 4155980 is 895514.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4155989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103880 + ... + 103919.

It is an arithmetic number, because the mean of its divisors is an integer number (727300).

Almost surely, 2^4155980 is an apocalyptic number.

It is an amenable number.

4155980 is an abundant number, since it is smaller than the sum of its proper divisors (4571620).

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

4155980 is a wasteful number, since it uses less digits than its factorization.

4155980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207808 (or 207806 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 4155980 is about 2038.6220836634. The cubic root of 4155980 is about 160.7772081423. Note that the first 3 decimals are identical.

The spelling of 4155980 in words is "four million, one hundred fifty-five thousand, nine hundred eighty".