19119240 has 192 divisors, whose sum is σ = 73906560. Its totient is φ = 4354560.

The previous prime is 19119239. The next prime is 19119251. The reversal of 19119240 is 4291191.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 47 ways as a sum of consecutive naturals, for example, 67900 + ... + 68180.

It is an arithmetic number, because the mean of its divisors is an integer number (384930).

Almost surely, 2^19119240 is an apocalyptic number.

19119240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19119240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36953280).

19119240 is an abundant number, since it is smaller than the sum of its proper divisors (54787320).

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

19119240 is a wasteful number, since it uses less digits than its factorization.

19119240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 19119240 is about 4372.5553169743. Note that the first 3 decimals coincide. The cubic root of 19119240 is about 267.3972120879.

The spelling of 19119240 in words is "nineteen million, one hundred nineteen thousand, two hundred forty".