19059240 has 64 divisors (see below), whose sum is σ = 58008960. Its totient is φ = 5008640.

The previous prime is 19059233. The next prime is 19059241. The reversal of 19059240 is 4295091.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 19059198 and 19059207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19059241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7402 + ... + 9638.

It is an arithmetic number, because the mean of its divisors is an integer number (906390).

Almost surely, 2^19059240 is an apocalyptic number.

19059240 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 19059240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29004480).

19059240 is an abundant number, since it is smaller than the sum of its proper divisors (38949720).

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

19059240 is a wasteful number, since it uses less digits than its factorization.

19059240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322 (or 2318 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 19059240 is about 4365.6889490663. The cubic root of 19059240 is about 267.1172036607.

The spelling of 19059240 in words is "nineteen million, fifty-nine thousand, two hundred forty".