1671242 has 16 divisors (see below), whose sum is σ = 2608200. Its totient is φ = 802560.

The previous prime is 1671227. The next prime is 1671277. The reversal of 1671242 is 2421761.

It can be written as a sum of positive squares in 4 ways, for example, as 1168561 + 502681 = 1081^2 + 709^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7184 + ... + 7412.

2^1671242 is an apocalyptic number.

1671242 is a deficient number, since it is larger than the sum of its proper divisors (936958).

1671242 is a wasteful number, since it uses less digits than its factorization.

1671242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361.

The product of its digits is 672, while the sum is 23.

The square root of 1671242 is about 1292.7652532459. The cubic root of 1671242 is about 118.6715041723.

The spelling of 1671242 in words is "one million, six hundred seventy-one thousand, two hundred forty-two".