421880237 has 8 divisors (see below), whose sum is σ = 463392960. Its totient is φ = 382298400.

The previous prime is 421880231. The next prime is 421880273. The reversal of 421880237 is 732088124.

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 421880237 - 2⁸ = 421879981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421880197 and 421880206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421880231) 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, 482264 + ... + 483137.

It is an arithmetic number, because the mean of its divisors is an integer number (57924120).

Almost surely, 2^421880237 is an apocalyptic number.

It is an amenable number.

421880237 is a deficient number, since it is larger than the sum of its proper divisors (41512723).

421880237 is a wasteful number, since it uses less digits than its factorization.

421880237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965443.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 421880237 is about 20539.7233915163. The cubic root of 421880237 is about 750.0031033946.

The spelling of 421880237 in words is "four hundred twenty-one million, eight hundred eighty thousand, two hundred thirty-seven".