19494950 has 24 divisors (see below), whose sum is σ = 38170920. Its totient is φ = 7387200.

The previous prime is 19494949. The next prime is 19495009. The reversal of 19494950 is 5949491.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19494898 and 19494907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9311 + ... + 11210.

It is an arithmetic number, because the mean of its divisors is an integer number (1590455).

Almost surely, 2^19494950 is an apocalyptic number.

19494950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19494950 is a deficient number, since it is larger than the sum of its proper divisors (18675970).

19494950 is a wasteful number, since it uses less digits than its factorization.

19494950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20552 (or 20547 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 19494950 is about 4415.3085962365. The cubic root of 19494950 is about 269.1373933644.

The spelling of 19494950 in words is "nineteen million, four hundred ninety-four thousand, nine hundred fifty".