1413520 has 20 divisors (see below), whose sum is σ = 3286620. Its totient is φ = 565376.

The previous prime is 1413509. The next prime is 1413521. The reversal of 1413520 is 253141.

It can be written as a sum of positive squares in 2 ways, for example, as 389376 + 1024144 = 624^2 + 1012^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1413494 and 1413503.

It is not an unprimeable number, because it can be changed into a prime (1413521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8755 + ... + 8914.

It is an arithmetic number, because the mean of its divisors is an integer number (164331).

2^1413520 is an apocalyptic number.

1413520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1413520 is an abundant number, since it is smaller than the sum of its proper divisors (1873100).

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

1413520 is a wasteful number, since it uses less digits than its factorization.

1413520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17682 (or 17676 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1413520 is about 1188.9154721846. The cubic root of 1413520 is about 112.2278524698.

Adding to 1413520 its reverse (253141), we get a palindrome (1666661).

The spelling of 1413520 in words is "one million, four hundred thirteen thousand, five hundred twenty".