672238481 has 8 divisors (see below), whose sum is σ = 676441344. Its totient is φ = 668046960.

The previous prime is 672238471. The next prime is 672238519. The reversal of 672238481 is 184832276.

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

It is a cyclic number.

It is not a de Polignac number, because 672238481 - 2¹⁴ = 672222097 is a prime.

It is a super-2 number, since 2×672238481² = 903809150674374722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (672238451) 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 7 ways as a sum of consecutive naturals, for example, 136736 + ... + 141566.

It is an arithmetic number, because the mean of its divisors is an integer number (84555168).

Almost surely, 2^672238481 is an apocalyptic number.

It is an amenable number.

672238481 is a deficient number, since it is larger than the sum of its proper divisors (4202863).

672238481 is a wasteful number, since it uses less digits than its factorization.

672238481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5671.

The product of its digits is 129024, while the sum is 41.

The square root of 672238481 is about 25927.5621877569. The cubic root of 672238481 is about 876.0074300191.

The spelling of 672238481 in words is "six hundred seventy-two million, two hundred thirty-eight thousand, four hundred eighty-one".