18241424 has 20 divisors (see below), whose sum is σ = 35437836. Its totient is φ = 9096192.

The previous prime is 18241397. The next prime is 18241427. The reversal of 18241424 is 42414281.

It can be written as a sum of positive squares in 2 ways, for example, as 2496400 + 15745024 = 1580^2 + 3968^2 .

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 18241393 and 18241402.

It is not an unprimeable number, because it can be changed into a prime (18241427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5612 + ... + 8244.

Almost surely, 2^18241424 is an apocalyptic number.

It is an amenable number.

18241424 is a deficient number, since it is larger than the sum of its proper divisors (17196412).

18241424 is a wasteful number, since it uses less digits than its factorization.

18241424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3074 (or 3068 counting only the distinct ones).

The product of its digits is 2048, while the sum is 26.

The square root of 18241424 is about 4270.9980098333. The cubic root of 18241424 is about 263.2406246671.

The spelling of 18241424 in words is "eighteen million, two hundred forty-one thousand, four hundred twenty-four".