15678252 has 48 divisors (see below), whose sum is σ = 40924800. Its totient is φ = 5190480.

The previous prime is 15678239. The next prime is 15678253. The reversal of 15678252 is 25287651.

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 (15678253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18927 + ... + 19737.

It is an arithmetic number, because the mean of its divisors is an integer number (852600).

Almost surely, 2^15678252 is an apocalyptic number.

15678252 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 15678252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20462400).

15678252 is an abundant number, since it is smaller than the sum of its proper divisors (25246548).

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

15678252 is a wasteful number, since it uses less digits than its factorization.

15678252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003 (or 995 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 15678252 is about 3959.5772501619. The cubic root of 15678252 is about 250.2836886280.

The spelling of 15678252 in words is "fifteen million, six hundred seventy-eight thousand, two hundred fifty-two".