1672040379 has 8 divisors (see below), whose sum is σ = 2233062400. Its totient is φ = 1112855976.

The previous prime is 1672040347. The next prime is 1672040401. The reversal of 1672040379 is 9730402761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1672040379 - 2⁵ = 1672040347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1672040309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457279 + ... + 460920.

It is an arithmetic number, because the mean of its divisors is an integer number (279132800).

Almost surely, 2^1672040379 is an apocalyptic number.

1672040379 is a deficient number, since it is larger than the sum of its proper divisors (561022021).

1672040379 is an equidigital number, since it uses as much as digits as its factorization.

1672040379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918809.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 1672040379 is about 40890.5903479028. The cubic root of 1672040379 is about 1186.9039825505.

The spelling of 1672040379 in words is "one billion, six hundred seventy-two million, forty thousand, three hundred seventy-nine".