19338140 has 12 divisors (see below), whose sum is σ = 40610136. Its totient is φ = 7735248.

The previous prime is 19338133. The next prime is 19338149. The reversal of 19338140 is 4183391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19338149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483434 + ... + 483473.

It is an arithmetic number, because the mean of its divisors is an integer number (3384178).

Almost surely, 2^19338140 is an apocalyptic number.

19338140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19338140 is an abundant number, since it is smaller than the sum of its proper divisors (21271996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19338140 is a wasteful number, since it uses less digits than its factorization.

19338140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966916 (or 966914 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 19338140 is about 4397.5152074780. The cubic root of 19338140 is about 268.4138367648.

The spelling of 19338140 in words is "nineteen million, three hundred thirty-eight thousand, one hundred forty".