9964458 has 96 divisors (see below), whose sum is σ = 26732160. Its totient is φ = 2721600.

The previous prime is 9964439. The next prime is 9964463. The reversal of 9964458 is 8544699.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98608 + ... + 98708.

It is an arithmetic number, because the mean of its divisors is an integer number (278460).

Almost surely, 2^9964458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9964458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13366080).

9964458 is an abundant number, since it is smaller than the sum of its proper divisors (16767702).

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

9964458 is a wasteful number, since it uses less digits than its factorization.

9964458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 142 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 9964458 is about 3156.6529742751. The cubic root of 9964458 is about 215.1879229505.

The spelling of 9964458 in words is "nine million, nine hundred sixty-four thousand, four hundred fifty-eight".