94721280 has 144 divisors (see below), whose sum is σ = 320531904. Its totient is φ = 23756800.

The previous prime is 94721273. The next prime is 94721281. The reversal of 94721280 is 8212749.

It is a happy number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94721281) 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, 64555 + ... + 66005.

It is an arithmetic number, because the mean of its divisors is an integer number (2225916).

Almost surely, 2^94721280 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 94721280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160265952).

94721280 is an abundant number, since it is smaller than the sum of its proper divisors (225810624).

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

94721280 is a wasteful number, since it uses less digits than its factorization.

94721280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492 (or 1478 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 94721280 is about 9732.4858078499. The cubic root of 94721280 is about 455.8435905554.

The spelling of 94721280 in words is "ninety-four million, seven hundred twenty-one thousand, two hundred eighty".