672151212 has 108 divisors (see below), whose sum is σ = 1806255360. Its totient is φ = 210497280.

The previous prime is 672151211. The next prime is 672151231. The reversal of 672151212 is 212151276.

It is not an unprimeable number, because it can be changed into a prime (672151211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1754773 + ... + 1755155.

Almost surely, 2^672151212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672151212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903127680).

672151212 is an abundant number, since it is smaller than the sum of its proper divisors (1134104148).

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

672151212 is a wasteful number, since it uses less digits than its factorization.

672151212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 458 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 672151212 is about 25925.8791943494. The cubic root of 672151212 is about 875.9695210513.

The spelling of 672151212 in words is "six hundred seventy-two million, one hundred fifty-one thousand, two hundred twelve".