18424465 has 8 divisors (see below), whose sum is σ = 22195008. Its totient is φ = 14682480.

The previous prime is 18424463. The next prime is 18424487. The reversal of 18424465 is 56442481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18424465 - 2¹ = 18424463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18424465.

It is not an unprimeable number, because it can be changed into a prime (18424463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5691 + ... + 8320.

It is an arithmetic number, because the mean of its divisors is an integer number (2774376).

Almost surely, 2^18424465 is an apocalyptic number.

It is an amenable number.

18424465 is a deficient number, since it is larger than the sum of its proper divisors (3770543).

18424465 is a wasteful number, since it uses less digits than its factorization.

18424465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14279.

The product of its digits is 30720, while the sum is 34.

The square root of 18424465 is about 4292.3728868774. The cubic root of 18424465 is about 264.1181796035.

It can be divided in two parts, 184 and 24465, that added together give a square (24649 = 157²).

The spelling of 18424465 in words is "eighteen million, four hundred twenty-four thousand, four hundred sixty-five".