421489134 has 24 divisors (see below), whose sum is σ = 996247512. Its totient is φ = 127723920.

The previous prime is 421489127. The next prime is 421489171. The reversal of 421489134 is 431984124.

It is a happy number.

421489134 is a `hidden beast` number, since 42 + 1 + 489 + 134 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1064169 + ... + 1064564.

It is an arithmetic number, because the mean of its divisors is an integer number (41510313).

Almost surely, 2^421489134 is an apocalyptic number.

421489134 is an abundant number, since it is smaller than the sum of its proper divisors (574758378).

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

421489134 is a wasteful number, since it uses less digits than its factorization.

421489134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128752 (or 2128749 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 421489134 is about 20530.2005348219. The cubic root of 421489134 is about 749.7712689165.

It can be divided in two parts, 421 and 489134, that added together give a triangular number (489555 = T₉₈₉).

The spelling of 421489134 in words is "four hundred twenty-one million, four hundred eighty-nine thousand, one hundred thirty-four".