19424484 has 36 divisors (see below), whose sum is σ = 49235004. Its totient is φ = 6457152.

The previous prime is 19424477. The next prime is 19424491. The reversal of 19424484 is 48442491.

It is an interprime number because it is at equal distance from previous prime (19424477) and next prime (19424491).

It can be written as a sum of positive squares in 2 ways, for example, as 15920100 + 3504384 = 3990^2 + 1872^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23974 + ... + 24770.

It is an arithmetic number, because the mean of its divisors is an integer number (1367639).

Almost surely, 2^19424484 is an apocalyptic number.

It is an amenable number.

19424484 is an abundant number, since it is smaller than the sum of its proper divisors (29810520).

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

19424484 is a wasteful number, since it uses less digits than its factorization.

19424484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484 (or 1479 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 19424484 is about 4407.3216356422. The cubic root of 19424484 is about 268.8127292548.

The spelling of 19424484 in words is "nineteen million, four hundred twenty-four thousand, four hundred eighty-four".