890417940 has 48 divisors (see below), whose sum is σ = 2530393152. Its totient is φ = 233899776.

The previous prime is 890417939. The next prime is 890417953. The reversal of 890417940 is 49714098.

It is a junction number, because it is equal to n+sod(n) for n = 890417892 and 890417901.

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 15 ways as a sum of consecutive naturals, for example, 106729 + ... + 114768.

It is an arithmetic number, because the mean of its divisors is an integer number (52716524).

Almost surely, 2^890417940 is an apocalyptic number.

It is an amenable number.

890417940 is an abundant number, since it is smaller than the sum of its proper divisors (1639975212).

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

890417940 is a wasteful number, since it uses less digits than its factorization.

890417940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221576 (or 221574 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 890417940 is about 29839.8716485175. The cubic root of 890417940 is about 962.0507160443.

The spelling of 890417940 in words is "eight hundred ninety million, four hundred seventeen thousand, nine hundred forty".