19424936 has 8 divisors (see below), whose sum is σ = 36421770. Its totient is φ = 9712464.

The previous prime is 19424869. The next prime is 19424953. The reversal of 19424936 is 63942491.

It can be written as a sum of positive squares in only one way, i.e., 19412836 + 12100 = 4406^2 + 110^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 19424936.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1214051 + ... + 1214066.

Almost surely, 2^19424936 is an apocalyptic number.

It is an amenable number.

19424936 is a deficient number, since it is larger than the sum of its proper divisors (16996834).

19424936 is a wasteful number, since it uses less digits than its factorization.

19424936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428123 (or 2428119 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 19424936 is about 4407.3729136528. The cubic root of 19424936 is about 268.8148142936.

The spelling of 19424936 in words is "nineteen million, four hundred twenty-four thousand, nine hundred thirty-six".