19138324 has 12 divisors (see below), whose sum is σ = 34397524. Its totient is φ = 9310464.

The previous prime is 19138313. The next prime is 19138373. The reversal of 19138324 is 42383191.

19138324 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in 2 ways, for example, as 15210000 + 3928324 = 3900^2 + 1982^2 .

It is a super-3 number, since 3×19138324³ (a number of 23 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64509 + ... + 64804.

Almost surely, 2^19138324 is an apocalyptic number.

It is an amenable number.

19138324 is a deficient number, since it is larger than the sum of its proper divisors (15259200).

19138324 is a wasteful number, since it uses less digits than its factorization.

19138324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129354 (or 129352 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 19138324 is about 4374.7370206676. The cubic root of 19138324 is about 267.4861506208.

The spelling of 19138324 in words is "nineteen million, one hundred thirty-eight thousand, three hundred twenty-four".