19440603929 has 8 divisors (see below), whose sum is σ = 20674852128. Its totient is φ = 18216431680.

The previous prime is 19440603913. The next prime is 19440603947. The reversal of 19440603929 is 92930604491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19440603929 - 2⁴ = 19440603913 is a prime.

It is a super-2 number, since 2×19440603929² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19440603979) 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, 2515007 + ... + 2522724.

It is an arithmetic number, because the mean of its divisors is an integer number (2584356516).

Almost surely, 2^19440603929 is an apocalyptic number.

It is an amenable number.

19440603929 is a deficient number, since it is larger than the sum of its proper divisors (1234248199).

19440603929 is a wasteful number, since it uses less digits than its factorization.

19440603929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5037975.

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 19440603929 in words is "nineteen billion, four hundred forty million, six hundred three thousand, nine hundred twenty-nine".