94724640 has 120 divisors (see below), whose sum is σ = 334344780. Its totient is φ = 25256448.

The previous prime is 94724627. The next prime is 94724683. The reversal of 94724640 is 4642749.

94724640 is a `hidden beast` number, since 9 + 4 + 7 + 2 + 4 + 640 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 93779856 + 944784 = 9684^2 + 972^2 .

It is a tau number, because it is divible by the number of its divisors (120).

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 = 94724595 and 94724604.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9306 + ... + 16614.

Almost surely, 2^94724640 is an apocalyptic number.

94724640 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 94724640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167172390).

94724640 is an abundant number, since it is smaller than the sum of its proper divisors (239620140).

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

94724640 is a wasteful number, since it uses less digits than its factorization.

94724640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7336 (or 7319 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 94724640 is about 9732.6584240895. The cubic root of 94724640 is about 455.8489804613.

The spelling of 94724640 in words is "ninety-four million, seven hundred twenty-four thousand, six hundred forty".