1672222018 has 8 divisors (see below), whose sum is σ = 2524944960. Its totient is φ = 830573700.

The previous prime is 1672222007. The next prime is 1672222043. The reversal of 1672222018 is 8102222761.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2768278 + ... + 2768881.

It is an arithmetic number, because the mean of its divisors is an integer number (315618120).

Almost surely, 2^1672222018 is an apocalyptic number.

1672222018 is a deficient number, since it is larger than the sum of its proper divisors (852722942).

1672222018 is a wasteful number, since it uses less digits than its factorization.

1672222018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5537312.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1672222018 is about 40892.8113242413. The cubic root of 1672222018 is about 1186.9469600306.

Adding to 1672222018 its reverse (8102222761), we get a palindrome (9774444779).

The spelling of 1672222018 in words is "one billion, six hundred seventy-two million, two hundred twenty-two thousand, eighteen".