19941955 has 8 divisors (see below), whose sum is σ = 26105904. Its totient is φ = 14503200.

The previous prime is 19941953. The next prime is 19941973. The reversal of 19941955 is 55914991.

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

It is not a de Polignac number, because 19941955 - 2¹ = 19941953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19941953) 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, 181236 + ... + 181345.

It is an arithmetic number, because the mean of its divisors is an integer number (3263238).

Almost surely, 2^19941955 is an apocalyptic number.

19941955 is a deficient number, since it is larger than the sum of its proper divisors (6163949).

19941955 is a wasteful number, since it uses less digits than its factorization.

19941955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362597.

The product of its digits is 72900, while the sum is 43.

The square root of 19941955 is about 4465.6416112357. The cubic root of 19941955 is about 271.1789099238.

The spelling of 19941955 in words is "nineteen million, nine hundred forty-one thousand, nine hundred fifty-five".