1409418 has 12 divisors (see below), whose sum is σ = 3053778. Its totient is φ = 469800.

The previous prime is 1409407. The next prime is 1409459. The reversal of 1409418 is 8149041.

It can be written as a sum of positive squares in only one way, i.e., 1375929 + 33489 = 1173^2 + 183^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1409391 and 1409400.

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, 39133 + ... + 39168.

2^1409418 is an apocalyptic number.

1409418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1409418 is an abundant number, since it is smaller than the sum of its proper divisors (1644360).

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

1409418 is a wasteful number, since it uses less digits than its factorization.

1409418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78309 (or 78306 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1409418 is about 1187.1891172008. The cubic root of 1409418 is about 112.1191864713.

The spelling of 1409418 in words is "one million, four hundred nine thousand, four hundred eighteen".