10009945442 has 32 divisors (see below), whose sum is σ = 17631827328. Its totient is φ = 4172103936.

The previous prime is 10009945441. The next prime is 10009945453. The reversal of 10009945442 is 24454990001.

It is a junction number, because it is equal to n+sod(n) for n = 10009945396 and 10009945405.

It is not an unprimeable number, because it can be changed into a prime (10009945441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1912433 + ... + 1917659.

It is an arithmetic number, because the mean of its divisors is an integer number (550994604).

Almost surely, 2^10009945442 is an apocalyptic number.

10009945442 is a deficient number, since it is larger than the sum of its proper divisors (7621881886).

10009945442 is a wasteful number, since it uses less digits than its factorization.

10009945442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8970.

The product of its (nonzero) digits is 51840, while the sum is 38.

It can be divided in two parts, 100099 and 45442, that added together give a palindrome (145541).

The spelling of 10009945442 in words is "ten billion, nine million, nine hundred forty-five thousand, four hundred forty-two".