19482240 has 128 divisors (see below), whose sum is σ = 63403200. Its totient is φ = 5087232.

The previous prime is 19482233. The next prime is 19482247. The reversal of 19482240 is 4228491.

It is an interprime number because it is at equal distance from previous prime (19482233) and next prime (19482247).

It is a tau number, because it is divible by the number of its divisors (128).

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 = 19482198 and 19482207.

It is not an unprimeable number, because it can be changed into a prime (19482247) 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, 140091 + ... + 140229.

Almost surely, 2^19482240 is an apocalyptic number.

19482240 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 19482240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31701600).

19482240 is an abundant number, since it is smaller than the sum of its proper divisors (43920960).

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

19482240 is a wasteful number, since it uses less digits than its factorization.

19482240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 19482240 is about 4413.8690510707. The cubic root of 19482240 is about 269.0788913773.

The spelling of 19482240 in words is "nineteen million, four hundred eighty-two thousand, two hundred forty".