4179940 has 12 divisors (see below), whose sum is σ = 8777916. Its totient is φ = 1671968.

The previous prime is 4179919. The next prime is 4179941. The reversal of 4179940 is 499714.

It can be written as a sum of positive squares in 2 ways, for example, as 2637376 + 1542564 = 1624^2 + 1242^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4179896 and 4179905.

It is not an unprimeable number, because it can be changed into a prime (4179941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104479 + ... + 104518.

It is an arithmetic number, because the mean of its divisors is an integer number (731493).

Almost surely, 2^4179940 is an apocalyptic number.

It is an amenable number.

4179940 is an abundant number, since it is smaller than the sum of its proper divisors (4597976).

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

4179940 is a wasteful number, since it uses less digits than its factorization.

4179940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209006 (or 209004 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 4179940 is about 2044.4901564938. The cubic root of 4179940 is about 161.0855864791.

The spelling of 4179940 in words is "four million, one hundred seventy-nine thousand, nine hundred forty".