18248227396 has 27 divisors (see below), whose sum is σ = 37152027549. Its totient is φ = 7819858368.

The previous prime is 18248227357. The next prime is 18248227421. The reversal of 18248227396 is 69372284281.

The square root of 18248227396 is 135086.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1946044996 + 16302182400 = 44114^2 + 127680^2 .

It is a super-2 number, since 2×18248227396² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1886380 + ... + 1896028.

Almost surely, 2^18248227396 is an apocalyptic number.

18248227396 is the 135086-th square number.

It is an amenable number.

18248227396 is an abundant number, since it is smaller than the sum of its proper divisors (18903800153).

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

18248227396 is an frugal number, since it uses more digits than its factorization.

18248227396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19316 (or 9658 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 52.

The spelling of 18248227396 in words is "eighteen billion, two hundred forty-eight million, two hundred twenty-seven thousand, three hundred ninety-six".