672151228 has 36 divisors (see below), whose sum is σ = 1370584152. Its totient is φ = 287585760.

The previous prime is 672151211. The next prime is 672151231. The reversal of 672151228 is 822151276.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 672151193 and 672151202.

It is a congruent number.

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, 131358 + ... + 136378.

It is an arithmetic number, because the mean of its divisors is an integer number (38071782).

Almost surely, 2^672151228 is an apocalyptic number.

It is an amenable number.

672151228 is an abundant number, since it is smaller than the sum of its proper divisors (698432924).

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

672151228 is a wasteful number, since it uses less digits than its factorization.

672151228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5722 (or 5713 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 672151228 is about 25925.8795029214. The cubic root of 672151228 is about 875.9695280018.

The spelling of 672151228 in words is "six hundred seventy-two million, one hundred fifty-one thousand, two hundred twenty-eight".