1409828 has 18 divisors (see below), whose sum is σ = 2870406. Its totient is φ = 604128.

The previous prime is 1409803. The next prime is 1409833. The reversal of 1409828 is 8289041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 879844 + 529984 = 938^2 + 728^2 .

It is a super-2 number, since 2×1409828² = 3975229979168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1409794 and 1409803.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3401 + ... + 3792.

It is an arithmetic number, because the mean of its divisors is an integer number (159467).

2^1409828 is an apocalyptic number.

It is an amenable number.

1409828 is an abundant number, since it is smaller than the sum of its proper divisors (1460578).

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

1409828 is a wasteful number, since it uses less digits than its factorization.

1409828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7211 (or 7202 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1409828 is about 1187.3617814297. The cubic root of 1409828 is about 112.1300572491.

The spelling of 1409828 in words is "one million, four hundred nine thousand, eight hundred twenty-eight".