1990902846 has 32 divisors (see below), whose sum is σ = 4082400000. Its totient is φ = 646896320.

The previous prime is 1990902829. The next prime is 1990902847. The reversal of 1990902846 is 6482090991.

It is a junction number, because it is equal to n+sod(n) for n = 1990902795 and 1990902804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990902847) by changing a digit.

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, 366055 + ... + 371453.

It is an arithmetic number, because the mean of its divisors is an integer number (127575000).

Almost surely, 2^1990902846 is an apocalyptic number.

1990902846 is an abundant number, since it is smaller than the sum of its proper divisors (2091497154).

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

1990902846 is a wasteful number, since it uses less digits than its factorization.

1990902846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6944.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 1990902846 is about 44619.5343543610. The cubic root of 1990902846 is about 1258.0078635612.

The spelling of 1990902846 in words is "one billion, nine hundred ninety million, nine hundred two thousand, eight hundred forty-six".