1870285645 has 16 divisors (see below), whose sum is σ = 2370627072. Its totient is φ = 1414284480.

The previous prime is 1870285631. The next prime is 1870285709. The reversal of 1870285645 is 5465820781.

It is not a de Polignac number, because 1870285645 - 2⁷ = 1870285517 is a prime.

It is a super-3 number, since 3×1870285645³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1870285595 and 1870285604.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 133642 + ... + 146971.

It is an arithmetic number, because the mean of its divisors is an integer number (148164192).

Almost surely, 2^1870285645 is an apocalyptic number.

It is an amenable number.

1870285645 is a deficient number, since it is larger than the sum of its proper divisors (500341427).

1870285645 is a wasteful number, since it uses less digits than its factorization.

1870285645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280692.

The product of its (nonzero) digits is 537600, while the sum is 46.

The square root of 1870285645 is about 43246.7992457245. The cubic root of 1870285645 is about 1232.0716943031.

The spelling of 1870285645 in words is "one billion, eight hundred seventy million, two hundred eighty-five thousand, six hundred forty-five".