1518484420 has 12 divisors (see below), whose sum is σ = 3188817324. Its totient is φ = 607393760.

The previous prime is 1518484369. The next prime is 1518484433. The reversal of 1518484420 is 244848151.

It can be written as a sum of positive squares in 2 ways, for example, as 600152004 + 918332416 = 24498^2 + 30304^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1518484420.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37962091 + ... + 37962130.

It is an arithmetic number, because the mean of its divisors is an integer number (265734777).

Almost surely, 2^1518484420 is an apocalyptic number.

1518484420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1518484420 is an abundant number, since it is smaller than the sum of its proper divisors (1670332904).

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

1518484420 is a wasteful number, since it uses less digits than its factorization.

1518484420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75924230 (or 75924228 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 37.

The square root of 1518484420 is about 38967.7356283375. The cubic root of 1518484420 is about 1149.3971433811.

The spelling of 1518484420 in words is "one billion, five hundred eighteen million, four hundred eighty-four thousand, four hundred twenty".