1618874572 has 48 divisors (see below), whose sum is σ = 3475241280. Its totient is φ = 644032512.

The previous prime is 1618874531. The next prime is 1618874599. The reversal of 1618874572 is 2754788161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11454 + ... + 58042.

It is an arithmetic number, because the mean of its divisors is an integer number (72400860).

Almost surely, 2^1618874572 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 1618874572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1737620640).

1618874572 is an abundant number, since it is smaller than the sum of its proper divisors (1856366708).

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

1618874572 is a wasteful number, since it uses less digits than its factorization.

1618874572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46690 (or 46688 counting only the distinct ones).

The product of its digits is 752640, while the sum is 49.

The square root of 1618874572 is about 40235.2404242848. The cubic root of 1618874572 is about 1174.1882601083.

The spelling of 1618874572 in words is "one billion, six hundred eighteen million, eight hundred seventy-four thousand, five hundred seventy-two".