4172940 has 72 divisors (see below), whose sum is σ = 12841920. Its totient is φ = 1096704.

The previous prime is 4172929. The next prime is 4172953. The reversal of 4172940 is 492714.

It is a happy number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 17341 + ... + 17579.

It is an arithmetic number, because the mean of its divisors is an integer number (178360).

Almost surely, 2^4172940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4172940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6420960).

4172940 is an abundant number, since it is smaller than the sum of its proper divisors (8668980).

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

4172940 is a wasteful number, since it uses less digits than its factorization.

4172940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 4172940 is about 2042.7775209259. Note that the first 3 decimals coincide. The cubic root of 4172940 is about 160.9956147617.

The spelling of 4172940 in words is "four million, one hundred seventy-two thousand, nine hundred forty".