421135470 has 64 divisors (see below), whose sum is σ = 1283466240. Its totient is φ = 96259104.

The previous prime is 421135459. The next prime is 421135471. The reversal of 421135470 is 74531124.

421135470 is a `hidden beast` number, since 4 + 2 + 113 + 547 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421135471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109522 + ... + 113301.

It is an arithmetic number, because the mean of its divisors is an integer number (20054160).

Almost surely, 2^421135470 is an apocalyptic number.

421135470 is an abundant number, since it is smaller than the sum of its proper divisors (862330770).

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

421135470 is a wasteful number, since it uses less digits than its factorization.

421135470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222846 (or 222840 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 421135470 is about 20521.5854650658. The cubic root of 421135470 is about 749.5615036779.

Adding to 421135470 its reverse (74531124), we get a palindrome (495666594).

The spelling of 421135470 in words is "four hundred twenty-one million, one hundred thirty-five thousand, four hundred seventy".