421652534 has 8 divisors (see below), whose sum is σ = 632617128. Its totient is φ = 210780160.

The previous prime is 421652531. The next prime is 421652549. The reversal of 421652534 is 435256124.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 421652534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421652531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10187 + ... + 30774.

It is an arithmetic number, because the mean of its divisors is an integer number (79077141).

Almost surely, 2^421652534 is an apocalyptic number.

421652534 is a deficient number, since it is larger than the sum of its proper divisors (210964594).

421652534 is a wasteful number, since it uses less digits than its factorization.

421652534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46110.

The product of its digits is 28800, while the sum is 32.

The square root of 421652534 is about 20534.1796524721. The cubic root of 421652534 is about 749.8681451167.

The spelling of 421652534 in words is "four hundred twenty-one million, six hundred fifty-two thousand, five hundred thirty-four".