421130534 has 8 divisors (see below), whose sum is σ = 689122728. Its totient is φ = 191422960.

The previous prime is 421130533. The next prime is 421130537. The reversal of 421130534 is 435031124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×421130534³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421130533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9571127 + ... + 9571170.

It is an arithmetic number, because the mean of its divisors is an integer number (86140341).

Almost surely, 2^421130534 is an apocalyptic number.

421130534 is a deficient number, since it is larger than the sum of its proper divisors (267992194).

421130534 is a wasteful number, since it uses less digits than its factorization.

421130534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19142310.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 421130534 is about 20521.4652011010. The cubic root of 421130534 is about 749.5585752061.

Adding to 421130534 its reverse (435031124), we get a palindrome (856161658).

The spelling of 421130534 in words is "four hundred twenty-one million, one hundred thirty thousand, five hundred thirty-four".