15438852 has 72 divisors (see below), whose sum is σ = 45864000. Its totient is φ = 4317120.

The previous prime is 15438827. The next prime is 15438853. The reversal of 15438852 is 25883451.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (15438853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3649 + ... + 6647.

It is an arithmetic number, because the mean of its divisors is an integer number (637000).

Almost surely, 2^15438852 is an apocalyptic number.

15438852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15438852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22932000).

15438852 is an abundant number, since it is smaller than the sum of its proper divisors (30425148).

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

15438852 is a wasteful number, since it uses less digits than its factorization.

15438852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033 (or 3028 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 15438852 is about 3929.2304590085. The cubic root of 15438852 is about 249.0032418410.

It can be divided in two parts, 15438 and 852, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 15438852 in words is "fifteen million, four hundred thirty-eight thousand, eight hundred fifty-two".