1642672 has 10 divisors (see below), whose sum is σ = 3182708. Its totient is φ = 821328.

The previous prime is 1642661. The next prime is 1642679. The reversal of 1642672 is 2762461.

It is a self number, because there is not a number n which added to its sum of digits gives 1642672.

It is not an unprimeable number, because it can be changed into a prime (1642679) by changing a digit.

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 as a sum of consecutive naturals, namely, 51318 + ... + 51349.

2^1642672 is an apocalyptic number.

It is an amenable number.

1642672 is a deficient number, since it is larger than the sum of its proper divisors (1540036).

1642672 is a wasteful number, since it uses less digits than its factorization.

1642672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102675 (or 102669 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 1642672 is about 1281.6676636320. The cubic root of 1642672 is about 117.9913811573.

The spelling of 1642672 in words is "one million, six hundred forty-two thousand, six hundred seventy-two".