1861068448 has 24 divisors (see below), whose sum is σ = 3665106900. Its totient is φ = 930247680.

The previous prime is 1861068431. The next prime is 1861068457. The reversal of 1861068448 is 8448601681.

It can be written as a sum of positive squares in 2 ways, for example, as 1851408784 + 9659664 = 43028^2 + 3108^2 .

It is a super-2 number, since 2×1861068448² = 6927151536282257408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1861068398 and 1861068407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129528 + ... + 143176.

Almost surely, 2^1861068448 is an apocalyptic number.

It is an amenable number.

1861068448 is a deficient number, since it is larger than the sum of its proper divisors (1804038452).

1861068448 is a wasteful number, since it uses less digits than its factorization.

1861068448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17920 (or 17912 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 1861068448 is about 43140.1025497159. The cubic root of 1861068448 is about 1230.0443829139.

The spelling of 1861068448 in words is "one billion, eight hundred sixty-one million, sixty-eight thousand, four hundred forty-eight".