1672655042 has 4 divisors (see below), whose sum is σ = 2508982566. Its totient is φ = 836327520.

The previous prime is 1672655027. The next prime is 1672655051. The reversal of 1672655042 is 2405562761.

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., 1646655241 + 25999801 = 40579^2 + 5099^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1672654987 and 1672655005.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 418163759 + ... + 418163762.

Almost surely, 2^1672655042 is an apocalyptic number.

1672655042 is a deficient number, since it is larger than the sum of its proper divisors (836327524).

1672655042 is an equidigital number, since it uses as much as digits as its factorization.

1672655042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836327523.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 1672655042 is about 40898.1056040497. The cubic root of 1672655042 is about 1187.0494049924.

The spelling of 1672655042 in words is "one billion, six hundred seventy-two million, six hundred fifty-five thousand, forty-two".