1864448325 has 18 divisors (see below), whose sum is σ = 3339434514. Its totient is φ = 994372320.

The previous prime is 1864448281. The next prime is 1864448351. The reversal of 1864448325 is 5238444681.

1864448325 is a `hidden beast` number, since 186 + 4 + 448 + 3 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 247684644 + 1616763681 = 15738^2 + 40209^2 .

It is not a de Polignac number, because 1864448325 - 2⁷ = 1864448197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4142994 + ... + 4143443.

Almost surely, 2^1864448325 is an apocalyptic number.

1864448325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1864448325 is a deficient number, since it is larger than the sum of its proper divisors (1474986189).

1864448325 is a wasteful number, since it uses less digits than its factorization.

1864448325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8286453 (or 8286445 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 1864448325 is about 43179.2580413328. The cubic root of 1864448325 is about 1230.7885583929.

The spelling of 1864448325 in words is "one billion, eight hundred sixty-four million, four hundred forty-eight thousand, three hundred twenty-five".