9942572 has 6 divisors (see below), whose sum is σ = 17399508. Its totient is φ = 4971284.

The previous prime is 9942571. The next prime is 9942577. The reversal of 9942572 is 2752499.

It is not an unprimeable number, because it can be changed into a prime (9942571) by changing a digit.

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 as a sum of consecutive naturals, namely, 1242818 + ... + 1242825.

It is an arithmetic number, because the mean of its divisors is an integer number (2899918).

Almost surely, 2^9942572 is an apocalyptic number.

It is an amenable number.

9942572 is a deficient number, since it is larger than the sum of its proper divisors (7456936).

9942572 is a wasteful number, since it uses less digits than its factorization.

9942572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485647 (or 2485645 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 9942572 is about 3153.1844221358. The cubic root of 9942572 is about 215.0302607488.

The spelling of 9942572 in words is "nine million, nine hundred forty-two thousand, five hundred seventy-two".