19930355 has 8 divisors (see below), whose sum is σ = 24140592. Its totient is φ = 15794848.

The previous prime is 19930333. The next prime is 19930381. The reversal of 19930355 is 55303991.

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 19930355 - 2⁶ = 19930291 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18092 + ... + 19161.

It is an arithmetic number, because the mean of its divisors is an integer number (3017574).

Almost surely, 2^19930355 is an apocalyptic number.

19930355 is a deficient number, since it is larger than the sum of its proper divisors (4210237).

19930355 is a wasteful number, since it uses less digits than its factorization.

19930355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37365.

The product of its (nonzero) digits is 18225, while the sum is 35.

The square root of 19930355 is about 4464.3426167802. The cubic root of 19930355 is about 271.1263192010.

The spelling of 19930355 in words is "nineteen million, nine hundred thirty thousand, three hundred fifty-five".