1672333345 has 4 divisors (see below), whose sum is σ = 2006800020. Its totient is φ = 1337866672.

The previous prime is 1672333321. The next prime is 1672333349. The reversal of 1672333345 is 5433332761.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 299186209 + 1373147136 = 17297^2 + 37056^2 .

It is a cyclic number.

It is not a de Polignac number, because 1672333345 - 2¹³ = 1672325153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1672333349) 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, 167233330 + ... + 167233339.

It is an arithmetic number, because the mean of its divisors is an integer number (501700005).

Almost surely, 2^1672333345 is an apocalyptic number.

It is an amenable number.

1672333345 is a deficient number, since it is larger than the sum of its proper divisors (334466675).

1672333345 is an equidigital number, since it uses as much as digits as its factorization.

1672333345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334466674.

The product of its digits is 136080, while the sum is 37.

The square root of 1672333345 is about 40894.1725066054. The cubic root of 1672333345 is about 1186.9732994980.

The spelling of 1672333345 in words is "one billion, six hundred seventy-two million, three hundred thirty-three thousand, three hundred forty-five".