1455520 has 48 divisors (see below), whose sum is σ = 3755808. Its totient is φ = 528640.

The previous prime is 1455499. The next prime is 1455527. The reversal of 1455520 is 255541.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1455491 and 1455500.

It is not an unprimeable number, because it can be changed into a prime (1455527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1347 + ... + 2173.

It is an arithmetic number, because the mean of its divisors is an integer number (78246).

2^1455520 is an apocalyptic number.

1455520 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 1455520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1877904).

1455520 is an abundant number, since it is smaller than the sum of its proper divisors (2300288).

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

1455520 is a wasteful number, since it uses less digits than its factorization.

1455520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 1455520 is about 1206.4493358612. The cubic root of 1455520 is about 113.3285657356.

It can be divided in two parts, 145 and 5520, that added together give a palindrome (5665).

The spelling of 1455520 in words is "one million, four hundred fifty-five thousand, five hundred twenty".