1818424608 has 384 divisors, whose sum is σ = 6502809600. Its totient is φ = 429649920.

The previous prime is 1818424603. The next prime is 1818424637. The reversal of 1818424608 is 8064248181.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1818424608.

It is not an unprimeable number, because it can be changed into a prime (1818424603) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12204118 + ... + 12204266.

It is an arithmetic number, because the mean of its divisors is an integer number (16934400).

Almost surely, 2^1818424608 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 1818424608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3251404800).

1818424608 is an abundant number, since it is smaller than the sum of its proper divisors (4684384992).

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

1818424608 is a wasteful number, since it uses less digits than its factorization.

1818424608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 42.

The square root of 1818424608 is about 42642.9901390604. The cubic root of 1818424608 is about 1220.5767692964.

It can be divided in two parts, 1818 and 424608, that added together give a triangular number (426426 = T₉₂₃).

The spelling of 1818424608 in words is "one billion, eight hundred eighteen million, four hundred twenty-four thousand, six hundred eight".