19120240 has 60 divisors (see below), whose sum is σ = 47280456. Its totient is φ = 7189504.

The previous prime is 19120237. The next prime is 19120247. The reversal of 19120240 is 4202191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19120247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22707 + ... + 23533.

Almost surely, 2^19120240 is an apocalyptic number.

19120240 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 19120240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23640228).

19120240 is an abundant number, since it is smaller than the sum of its proper divisors (28160216).

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

19120240 is a wasteful number, since it uses less digits than its factorization.

19120240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874 (or 851 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 19120240 is about 4372.6696650902. The cubic root of 19120240 is about 267.4018739285.

The spelling of 19120240 in words is "nineteen million, one hundred twenty thousand, two hundred forty".