1409860 has 24 divisors (see below), whose sum is σ = 2986200. Its totient is φ = 559104.

The previous prime is 1409851. The next prime is 1409869. The reversal of 1409860 is 689041.

It is an interprime number because it is at equal distance from previous prime (1409851) and next prime (1409869).

It can be written as a sum of positive squares in 4 ways, for example, as 101124 + 1308736 = 318^2 + 1144^2 .

It is not an unprimeable number, because it can be changed into a prime (1409869) 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, 2916 + ... + 3364.

It is an arithmetic number, because the mean of its divisors is an integer number (124425).

2^1409860 is an apocalyptic number.

1409860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1409860 is an abundant number, since it is smaller than the sum of its proper divisors (1576340).

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

1409860 is a wasteful number, since it uses less digits than its factorization.

1409860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1409860 is about 1187.3752566059. The cubic root of 1409860 is about 112.1309056114.

It can be divided in two parts, 140 and 9860, that added together give a 4-th power (10000 = 10⁴).

The spelling of 1409860 in words is "one million, four hundred nine thousand, eight hundred sixty".