1352520 has 144 divisors (see below), whose sum is σ = 5028660. Its totient is φ = 313344.

The previous prime is 1352489. The next prime is 1352521. The reversal of 1352520 is 252531.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 715716 + 636804 = 846^2 + 798^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1352493 and 1352502.

It is not an unprimeable number, because it can be changed into a prime (1352521) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 79552 + ... + 79568.

2^1352520 is an apocalyptic number.

1352520 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 1352520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2514330).

1352520 is an abundant number, since it is smaller than the sum of its proper divisors (3676140).

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

1352520 is a wasteful number, since it uses less digits than its factorization.

1352520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1352520 is about 1162.9789336011. The cubic root of 1352520 is about 110.5896708022.

The spelling of 1352520 in words is "one million, three hundred fifty-two thousand, five hundred twenty".