1890625692 has 24 divisors (see below), whose sum is σ = 4670958096. Its totient is φ = 593137408.

The previous prime is 1890625673. The next prime is 1890625697. The reversal of 1890625692 is 2965260981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1890625697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4633683 + ... + 4634090.

It is an arithmetic number, because the mean of its divisors is an integer number (194623254).

Almost surely, 2^1890625692 is an apocalyptic number.

1890625692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1890625692 is an abundant number, since it is smaller than the sum of its proper divisors (2780332404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1890625692 is a wasteful number, since it uses less digits than its factorization.

1890625692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9267797 (or 9267795 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 1890625692 is about 43481.3257847550. The cubic root of 1890625692 is about 1236.5220116746.

The spelling of 1890625692 in words is "one billion, eight hundred ninety million, six hundred twenty-five thousand, six hundred ninety-two".