9964442 has 4 divisors (see below), whose sum is σ = 14946666. Its totient is φ = 4982220.

The previous prime is 9964439. The next prime is 9964463. The reversal of 9964442 is 2444699.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9006001 + 958441 = 3001^2 + 979^2 .

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 9964396 and 9964405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2491109 + ... + 2491112.

Almost surely, 2^9964442 is an apocalyptic number.

9964442 is a deficient number, since it is larger than the sum of its proper divisors (4982224).

9964442 is a wasteful number, since it uses less digits than its factorization.

9964442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4982223.

The product of its digits is 62208, while the sum is 38.

The square root of 9964442 is about 3156.6504399442. The cubic root of 9964442 is about 215.1878077742.

The spelling of 9964442 in words is "nine million, nine hundred sixty-four thousand, four hundred forty-two".