19430136 has 48 divisors (see below), whose sum is σ = 57409560. Its totient is φ = 5887680.

The previous prime is 19430123. The next prime is 19430153. The reversal of 19430136 is 63103491.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11475 + ... + 13058.

Almost surely, 2^19430136 is an apocalyptic number.

It is an amenable number.

19430136 is an abundant number, since it is smaller than the sum of its proper divisors (37979424).

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

19430136 is a wasteful number, since it uses less digits than its factorization.

19430136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24556 (or 24549 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 19430136 is about 4407.9627947613. The cubic root of 19430136 is about 268.8387991400.

The spelling of 19430136 in words is "nineteen million, four hundred thirty thousand, one hundred thirty-six".