421246534 has 4 divisors (see below), whose sum is σ = 631869804. Its totient is φ = 210623266.

The previous prime is 421246493. The next prime is 421246537. The reversal of 421246534 is 435642124.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 421246496 and 421246505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421246537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105311632 + ... + 105311635.

It is an arithmetic number, because the mean of its divisors is an integer number (157967451).

Almost surely, 2^421246534 is an apocalyptic number.

421246534 is a deficient number, since it is larger than the sum of its proper divisors (210623270).

421246534 is a wasteful number, since it uses less digits than its factorization.

421246534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210623269.

The product of its digits is 23040, while the sum is 31.

The square root of 421246534 is about 20524.2913154145. The cubic root of 421246534 is about 749.6273906174.

Adding to 421246534 its reverse (435642124), we get a palindrome (856888658).

The spelling of 421246534 in words is "four hundred twenty-one million, two hundred forty-six thousand, five hundred thirty-four".