15380738 has 8 divisors (see below), whose sum is σ = 23204988. Its totient is φ = 7645744.

The previous prime is 15380731. The next prime is 15380753. The reversal of 15380738 is 83708351.

It can be written as a sum of positive squares in 2 ways, for example, as 15311569 + 69169 = 3913^2 + 263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 15380698 and 15380707.

It is not an unprimeable number, because it can be changed into a prime (15380731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21881 + ... + 22572.

Almost surely, 2^15380738 is an apocalyptic number.

15380738 is a deficient number, since it is larger than the sum of its proper divisors (7824250).

15380738 is a wasteful number, since it uses less digits than its factorization.

15380738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44628.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 15380738 is about 3921.8284001216. The cubic root of 15380738 is about 248.6904213264.

The spelling of 15380738 in words is "fifteen million, three hundred eighty thousand, seven hundred thirty-eight".