18041372 has 6 divisors (see below), whose sum is σ = 31572408. Its totient is φ = 9020684.

The previous prime is 18041371. The next prime is 18041383. The reversal of 18041372 is 27314081.

It is a super-2 number, since 2×18041372² = 650982207284768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18041371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2255168 + ... + 2255175.

It is an arithmetic number, because the mean of its divisors is an integer number (5262068).

Almost surely, 2^18041372 is an apocalyptic number.

It is an amenable number.

18041372 is a deficient number, since it is larger than the sum of its proper divisors (13531036).

18041372 is a wasteful number, since it uses less digits than its factorization.

18041372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510347 (or 4510345 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 18041372 is about 4247.5136256403. The cubic root of 18041372 is about 262.2747734006.

The spelling of 18041372 in words is "eighteen million, forty-one thousand, three hundred seventy-two".