1405536 has 60 divisors (see below), whose sum is σ = 4058460. Its totient is φ = 425920.

The previous prime is 1405531. The next prime is 1405561. The reversal of 1405536 is 6355041.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 11.

It is a zygodrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405531) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 127771 + ... + 127781.

It is an arithmetic number, because the mean of its divisors is an integer number (67641).

2^1405536 is an apocalyptic number.

1405536 is a gapful number since it is divisible by the number (16) 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 1405536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2029230).

1405536 is an abundant number, since it is smaller than the sum of its proper divisors (2652924).

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

1405536 is an frugal number, since it uses more digits than its factorization.

1405536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57 (or 16 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1405536 is about 1185.5530355071. The cubic root of 1405536 is about 112.0161541325.

Multiplying 1405536 by its sum of digits (24), we get a square (33732864 = 5808²).

1405536 divided by its sum of digits (24) gives a square (58564 = 242²).

The spelling of 1405536 in words is "one million, four hundred five thousand, five hundred thirty-six".