421097236 has 24 divisors (see below), whose sum is σ = 847567616. Its totient is φ = 179318880.

The previous prime is 421097233. The next prime is 421097249. The reversal of 421097236 is 632790124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421097233) 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, 43500 + ... + 52291.

Almost surely, 2^421097236 is an apocalyptic number.

It is an amenable number.

421097236 is an abundant number, since it is smaller than the sum of its proper divisors (426470380).

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

421097236 is a wasteful number, since it uses less digits than its factorization.

421097236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95959 (or 95957 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 421097236 is about 20520.6538882171. The cubic root of 421097236 is about 749.5388192894.

The spelling of 421097236 in words is "four hundred twenty-one million, ninety-seven thousand, two hundred thirty-six".