15482820 has 48 divisors (see below), whose sum is σ = 43888320. Its totient is φ = 4077696.

The previous prime is 15482809. The next prime is 15482827. The reversal of 15482820 is 2828451.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (15482827) 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, 3426 + ... + 6534.

It is an arithmetic number, because the mean of its divisors is an integer number (914340).

Almost surely, 2^15482820 is an apocalyptic number.

15482820 is a gapful number since it is divisible by the number (10) 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 15482820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21944160).

15482820 is an abundant number, since it is smaller than the sum of its proper divisors (28405500).

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

15482820 is a wasteful number, since it uses less digits than its factorization.

15482820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204 (or 3202 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 15482820 is about 3934.8214699018. The cubic root of 15482820 is about 249.2393949332.

The spelling of 15482820 in words is "fifteen million, four hundred eighty-two thousand, eight hundred twenty".