94006440 has 256 divisors, whose sum is σ = 351993600. Its totient is φ = 22118400.

The previous prime is 94006417. The next prime is 94006469. The reversal of 94006440 is 4460049.

It is a super-2 number, since 2×94006440² = 17674421522947200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 486984 + ... + 487176.

It is an arithmetic number, because the mean of its divisors is an integer number (1374975).

Almost surely, 2^94006440 is an apocalyptic number.

94006440 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 94006440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175996800).

94006440 is an abundant number, since it is smaller than the sum of its proper divisors (257987160).

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

94006440 is a wasteful number, since it uses less digits than its factorization.

94006440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 94006440 is about 9695.6918267858. The cubic root of 94006440 is about 454.6939776949.

Adding to 94006440 its reverse (4460049), we get a palindrome (98466489).

The spelling of 94006440 in words is "ninety-four million, six thousand, four hundred forty".