94391920 has 80 divisors (see below), whose sum is σ = 254358720. Its totient is φ = 31905792.

The previous prime is 94391909. The next prime is 94391953. The reversal of 94391920 is 2919349.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×94391920² = 17819669122572800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 94391920.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39726 + ... + 42034.

It is an arithmetic number, because the mean of its divisors is an integer number (3179484).

Almost surely, 2^94391920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 94391920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127179360).

94391920 is an abundant number, since it is smaller than the sum of its proper divisors (159966800).

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

94391920 is a wasteful number, since it uses less digits than its factorization.

94391920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402 (or 2396 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 94391920 is about 9715.5504218752. The cubic root of 94391920 is about 455.3146316360.

The spelling of 94391920 in words is "ninety-four million, three hundred ninety-one thousand, nine hundred twenty".