1990860325 has 12 divisors (see below), whose sum is σ = 2470020480. Its totient is φ = 1591814960.

The previous prime is 1990860239. The next prime is 1990860367. The reversal of 1990860325 is 5230680991.

It is a happy number.

It is not a de Polignac number, because 1990860325 - 2⁹ = 1990859813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26796 + ... + 68554.

It is an arithmetic number, because the mean of its divisors is an integer number (205835040).

Almost surely, 2^1990860325 is an apocalyptic number.

It is an amenable number.

1990860325 is a deficient number, since it is larger than the sum of its proper divisors (479160155).

1990860325 is a wasteful number, since it uses less digits than its factorization.

1990860325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43676 (or 43671 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 1990860325 is about 44619.0578676870. The cubic root of 1990860325 is about 1257.9989074682.

The spelling of 1990860325 in words is "one billion, nine hundred ninety million, eight hundred sixty thousand, three hundred twenty-five".