421907285 has 8 divisors (see below), whose sum is σ = 528301440. Its totient is φ = 322850704.

The previous prime is 421907273. The next prime is 421907329. The reversal of 421907285 is 582709124.

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 421907285 - 2¹⁴ = 421890901 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1834265 + ... + 1834494.

It is an arithmetic number, because the mean of its divisors is an integer number (66037680).

Almost surely, 2^421907285 is an apocalyptic number.

It is an amenable number.

421907285 is a deficient number, since it is larger than the sum of its proper divisors (106394155).

421907285 is a wasteful number, since it uses less digits than its factorization.

421907285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3668787.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 421907285 is about 20540.3818124201. The cubic root of 421907285 is about 750.0191313638.

The spelling of 421907285 in words is "four hundred twenty-one million, nine hundred seven thousand, two hundred eighty-five".