13019224 has 8 divisors (see below), whose sum is σ = 24411060. Its totient is φ = 6509608.

The previous prime is 13019221. The next prime is 13019233. The reversal of 13019224 is 42291031.

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

It is a junction number, because it is equal to n+sod(n) for n = 13019195 and 13019204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13019221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813694 + ... + 813709.

Almost surely, 2^13019224 is an apocalyptic number.

It is an amenable number.

13019224 is a deficient number, since it is larger than the sum of its proper divisors (11391836).

13019224 is a wasteful number, since it uses less digits than its factorization.

13019224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627409 (or 1627405 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 13019224 is about 3608.2161797764. The cubic root of 13019224 is about 235.2493144008.

The spelling of 13019224 in words is "thirteen million, nineteen thousand, two hundred twenty-four".