672226340 has 48 divisors (see below), whose sum is σ = 1437139200. Its totient is φ = 264072960.

The previous prime is 672226339. The next prime is 672226391. The reversal of 672226340 is 43622276.

It is a junction number, because it is equal to n+sod(n) for n = 672226297 and 672226306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394811 + ... + 396509.

It is an arithmetic number, because the mean of its divisors is an integer number (29940400).

Almost surely, 2^672226340 is an apocalyptic number.

It is an amenable number.

672226340 is an abundant number, since it is smaller than the sum of its proper divisors (764912860).

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

672226340 is a wasteful number, since it uses less digits than its factorization.

672226340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052 (or 2050 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 672226340 is about 25927.3280536194. The cubic root of 672226340 is about 876.0021562605.

The spelling of 672226340 in words is "six hundred seventy-two million, two hundred twenty-six thousand, three hundred forty".