672237216 has 72 divisors (see below), whose sum is σ = 2184777504. Its totient is φ = 192067200.

The previous prime is 672237161. The next prime is 672237229. The reversal of 672237216 is 612732276.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164710 + ... + 168741.

It is an arithmetic number, because the mean of its divisors is an integer number (30344132).

Almost surely, 2^672237216 is an apocalyptic number.

It is an amenable number.

672237216 is an abundant number, since it is smaller than the sum of its proper divisors (1512540288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

672237216 is a wasteful number, since it uses less digits than its factorization.

672237216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333474 (or 333463 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 672237216 is about 25927.5377928565. The cubic root of 672237216 is about 876.0068805364.

The spelling of 672237216 in words is "six hundred seventy-two million, two hundred thirty-seven thousand, two hundred sixteen".