1670016 has 32 divisors (see below), whose sum is σ = 4437000. Its totient is φ = 556544.

The previous prime is 1670003. The next prime is 1670017. The reversal of 1670016 is 6100761.

It is a tau number, because it is divible by the number of its divisors (32).

It is an Ulam number.

It is a nialpdrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 1669974 and 1670001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1791 + ... + 2558.

2^1670016 is an apocalyptic number.

1670016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1670016 is an abundant number, since it is smaller than the sum of its proper divisors (2766984).

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

1670016 is an equidigital number, since it uses as much as digits as its factorization.

1670016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4366 (or 4354 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 1670016 is about 1292.2909889030. The cubic root of 1670016 is about 118.6424784826.

Adding to 1670016 its reverse (6100761), we get a palindrome (7770777).

The spelling of 1670016 in words is "one million, six hundred seventy thousand, sixteen".