9949942 has 16 divisors (see below), whose sum is σ = 15409152. Its totient is φ = 4815720.

The previous prime is 9949931. The next prime is 9949943. The reversal of 9949942 is 2499499.

It is a junction number, because it is equal to n+sod(n) for n = 9949892 and 9949901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9949943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10467 + ... + 11377.

It is an arithmetic number, because the mean of its divisors is an integer number (963072).

Almost surely, 2^9949942 is an apocalyptic number.

9949942 is a deficient number, since it is larger than the sum of its proper divisors (5459210).

9949942 is a wasteful number, since it uses less digits than its factorization.

9949942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083.

The product of its digits is 209952, while the sum is 46.

The square root of 9949942 is about 3154.3528654860. The cubic root of 9949942 is about 215.0833785138.

The spelling of 9949942 in words is "nine million, nine hundred forty-nine thousand, nine hundred forty-two".