4181972 has 6 divisors (see below), whose sum is σ = 7318458. Its totient is φ = 2090984.

The previous prime is 4181953. The next prime is 4181981. The reversal of 4181972 is 2791814.

It can be written as a sum of positive squares in only one way, i.e., 3519376 + 662596 = 1876^2 + 814^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522743 + ... + 522750.

It is an arithmetic number, because the mean of its divisors is an integer number (1219743).

Almost surely, 2^4181972 is an apocalyptic number.

It is an amenable number.

4181972 is a deficient number, since it is larger than the sum of its proper divisors (3136486).

4181972 is a wasteful number, since it uses less digits than its factorization.

4181972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045497 (or 1045495 counting only the distinct ones).

The product of its digits is 4032, while the sum is 32.

The square root of 4181972 is about 2044.9870415237. The cubic root of 4181972 is about 161.1116851699. Note that the first 3 decimals are identical.

The spelling of 4181972 in words is "four million, one hundred eighty-one thousand, nine hundred seventy-two".