1500220 has 12 divisors (see below), whose sum is σ = 3150504. Its totient is φ = 600080.

The previous prime is 1500181. The next prime is 1500229. The reversal of 1500220 is 220051.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1500197 and 1500206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1500229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37486 + ... + 37525.

It is an arithmetic number, because the mean of its divisors is an integer number (262542).

2^1500220 is an apocalyptic number.

1500220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1500220 is an abundant number, since it is smaller than the sum of its proper divisors (1650284).

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

1500220 is a wasteful number, since it uses less digits than its factorization.

1500220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75020 (or 75018 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 1500220 is about 1224.8346827225. The cubic root of 1500220 is about 114.4770203625.

Adding to 1500220 its reverse (220051), we get a palindrome (1720271).

The spelling of 1500220 in words is "one million, five hundred thousand, two hundred twenty".