94213840 has 80 divisors (see below), whose sum is σ = 257162112. Its totient is φ = 31421952.

The previous prime is 94213831. The next prime is 94213849. The reversal of 94213840 is 4831249.

It is an interprime number because it is at equal distance from previous prime (94213831) and next prime (94213849).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94213849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18447 + ... + 22993.

Almost surely, 2^94213840 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 94213840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128581056).

94213840 is an abundant number, since it is smaller than the sum of its proper divisors (162948272).

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

94213840 is a wasteful number, since it uses less digits than its factorization.

94213840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4604 (or 4598 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 94213840 is about 9706.3814060648. The cubic root of 94213840 is about 455.0281188596.

The spelling of 94213840 in words is "ninety-four million, two hundred thirteen thousand, eight hundred forty".