890444440 has 16 divisors (see below), whose sum is σ = 2003500080. Its totient is φ = 356177760.

The previous prime is 890444431. The next prime is 890444453. The reversal of 890444440 is 44444098.

It is a self number, because there is not a number n which added to its sum of digits gives 890444440.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11130516 + ... + 11130595.

It is an arithmetic number, because the mean of its divisors is an integer number (125218755).

Almost surely, 2^890444440 is an apocalyptic number.

It is an amenable number.

890444440 is an abundant number, since it is smaller than the sum of its proper divisors (1113055640).

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

890444440 is a wasteful number, since it uses less digits than its factorization.

890444440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22261122 (or 22261118 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 890444440 is about 29840.3156819763. The cubic root of 890444440 is about 962.0602599113.

The spelling of 890444440 in words is "eight hundred ninety million, four hundred forty-four thousand, four hundred forty".