15478452 has 120 divisors (see below), whose sum is σ = 45616032. Its totient is φ = 4536000.

The previous prime is 15478447. The next prime is 15478453. The reversal of 15478452 is 25487451.

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

Its product of digits (44800) is a multiple of the sum of its prime divisors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15478453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 153202 + ... + 153302.

Almost surely, 2^15478452 is an apocalyptic number.

15478452 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 15478452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22808016).

15478452 is an abundant number, since it is smaller than the sum of its proper divisors (30137580).

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

15478452 is a wasteful number, since it uses less digits than its factorization.

15478452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 160 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 15478452 is about 3934.2663865071. The cubic root of 15478452 is about 249.2159543267.

It can be divided in two parts, 1547 and 8452, that added together give a palindrome (9999).

The spelling of 15478452 in words is "fifteen million, four hundred seventy-eight thousand, four hundred fifty-two".