1864801445 has 16 divisors (see below), whose sum is σ = 2411119872. Its totient is φ = 1376385600.

The previous prime is 1864801403. The next prime is 1864801489. The reversal of 1864801445 is 5441084681.

It is a happy number.

It is not a de Polignac number, because 1864801445 - 2⁶ = 1864801381 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 146714 + ... + 158916.

It is an arithmetic number, because the mean of its divisors is an integer number (150694992).

Almost surely, 2^1864801445 is an apocalyptic number.

It is an amenable number.

1864801445 is a deficient number, since it is larger than the sum of its proper divisors (546318427).

1864801445 is a wasteful number, since it uses less digits than its factorization.

1864801445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14572.

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 1864801445 is about 43183.3468480617. The cubic root of 1864801445 is about 1230.8662558391.

The spelling of 1864801445 in words is "one billion, eight hundred sixty-four million, eight hundred one thousand, four hundred forty-five".