94544640 has 216 divisors, whose sum is σ = 339590160. Its totient is φ = 24256512.

The previous prime is 94544581. The next prime is 94544663. The reversal of 94544640 is 4644549.

94544640 = 148² + 149² + ... + 659².

94544640 is a `hidden beast` number, since 9 + 4 + 5 + 4 + 4 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 94544595 and 94544604.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 333939 + ... + 334221.

Almost surely, 2^94544640 is an apocalyptic number.

94544640 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 94544640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169795080).

94544640 is an abundant number, since it is smaller than the sum of its proper divisors (245045520).

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

94544640 is a wasteful number, since it uses less digits than its factorization.

94544640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 94544640 is about 9723.4068103726. The cubic root of 94544640 is about 455.5600558306.

The spelling of 94544640 in words is "ninety-four million, five hundred forty-four thousand, six hundred forty".