1670042 has 24 divisors (see below), whose sum is σ = 2821728. Its totient is φ = 740520.

The previous prime is 1670017. The next prime is 1670057. The reversal of 1670042 is 2400761.

It is a junction number, because it is equal to n+sod(n) for n = 1669996 and 1670023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16163 + ... + 16265.

It is an arithmetic number, because the mean of its divisors is an integer number (117572).

2^1670042 is an apocalyptic number.

1670042 is a deficient number, since it is larger than the sum of its proper divisors (1151686).

1670042 is a wasteful number, since it uses less digits than its factorization.

1670042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1670042 is about 1292.3010485177. The cubic root of 1670042 is about 118.6430941829.

The spelling of 1670042 in words is "one million, six hundred seventy thousand, forty-two".