19424080 has 80 divisors (see below), whose sum is σ = 51246720. Its totient is φ = 6787584.

The previous prime is 19424057. The next prime is 19424101. The reversal of 19424080 is 8042491.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19269 + ... + 20251.

It is an arithmetic number, because the mean of its divisors is an integer number (640584).

Almost surely, 2^19424080 is an apocalyptic number.

19424080 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 19424080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25623360).

19424080 is an abundant number, since it is smaller than the sum of its proper divisors (31822640).

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

19424080 is a wasteful number, since it uses less digits than its factorization.

19424080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 19424080 is about 4407.2758025792. The cubic root of 19424080 is about 268.8108656086.

The spelling of 19424080 in words is "nineteen million, four hundred twenty-four thousand, eighty".