15380730 has 96 divisors (see below), whose sum is σ = 42456960. Its totient is φ = 3857280.

The previous prime is 15380693. The next prime is 15380731. The reversal of 15380730 is 3708351.

It is a junction number, because it is equal to n+sod(n) for n = 15380694 and 15380703.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 185269 + ... + 185351.

It is an arithmetic number, because the mean of its divisors is an integer number (442260).

Almost surely, 2^15380730 is an apocalyptic number.

15380730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15380730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21228480).

15380730 is an abundant number, since it is smaller than the sum of its proper divisors (27076230).

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

15380730 is a wasteful number, since it uses less digits than its factorization.

15380730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 15380730 is about 3921.8273801890. The cubic root of 15380730 is about 248.6903782092.

It can be divided in two parts, 15380 and 730, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 15380730 in words is "fifteen million, three hundred eighty thousand, seven hundred thirty".