1670418 has 12 divisors (see below), whose sum is σ = 3619278. Its totient is φ = 556800.

The previous prime is 1670413. The next prime is 1670419. The reversal of 1670418 is 8140761.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1238769 + 431649 = 1113^2 + 657^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1670391 and 1670400.

It is not an unprimeable number, because it can be changed into a prime (1670411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46383 + ... + 46418.

2^1670418 is an apocalyptic number.

1670418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1670418 is an abundant number, since it is smaller than the sum of its proper divisors (1948860).

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

1670418 is a wasteful number, since it uses less digits than its factorization.

1670418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92809 (or 92806 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1670418 is about 1292.4465172687. The cubic root of 1670418 is about 118.6519974433.

The spelling of 1670418 in words is "one million, six hundred seventy thousand, four hundred eighteen".