421260673 has 8 divisors (see below), whose sum is σ = 426508992. Its totient is φ = 416045136.

The previous prime is 421260601. The next prime is 421260689. The reversal of 421260673 is 376062124.

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 421260673 - 2¹⁷ = 421129601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421260373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18186 + ... + 34252.

It is an arithmetic number, because the mean of its divisors is an integer number (53313624).

Almost surely, 2^421260673 is an apocalyptic number.

It is an amenable number.

421260673 is a deficient number, since it is larger than the sum of its proper divisors (5248319).

421260673 is a wasteful number, since it uses less digits than its factorization.

421260673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16391.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 421260673 is about 20524.6357580348. The cubic root of 421260673 is about 749.6357775217.

The spelling of 421260673 in words is "four hundred twenty-one million, two hundred sixty thousand, six hundred seventy-three".