1672442306 has 4 divisors (see below), whose sum is σ = 2508663462. Its totient is φ = 836221152.

The previous prime is 1672442257. The next prime is 1672442311. The reversal of 1672442306 is 6032442761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1055665081 + 616777225 = 32491^2 + 24835^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 418110575 + ... + 418110578.

Almost surely, 2^1672442306 is an apocalyptic number.

1672442306 is a deficient number, since it is larger than the sum of its proper divisors (836221156).

1672442306 is an equidigital number, since it uses as much as digits as its factorization.

1672442306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836221155.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 1672442306 is about 40895.5047162888. The cubic root of 1672442306 is about 1186.9990780486. Note that the first 3 decimals are identical.

The spelling of 1672442306 in words is "one billion, six hundred seventy-two million, four hundred forty-two thousand, three hundred six".