19949432 has 32 divisors (see below), whose sum is σ = 40461120. Its totient is φ = 9185280.

The previous prime is 19949431. The next prime is 19949453. The reversal of 19949432 is 23494991.

It is a self number, because there is not a number n which added to its sum of digits gives 19949432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19949431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4832 + ... + 7952.

It is an arithmetic number, because the mean of its divisors is an integer number (1264410).

Almost surely, 2^19949432 is an apocalyptic number.

It is an amenable number.

19949432 is an abundant number, since it is smaller than the sum of its proper divisors (20511688).

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

19949432 is a wasteful number, since it uses less digits than its factorization.

19949432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191 (or 3187 counting only the distinct ones).

The product of its digits is 69984, while the sum is 41.

The square root of 19949432 is about 4466.4787025128. The cubic root of 19949432 is about 271.2127974632.

The spelling of 19949432 in words is "nineteen million, nine hundred forty-nine thousand, four hundred thirty-two".