534242421 has 12 divisors (see below), whose sum is σ = 774472972. Its totient is φ = 354874176.

The previous prime is 534242419. The next prime is 534242431. The reversal of 534242421 is 124242435.

It can be written as a sum of positive squares in 2 ways, for example, as 228342321 + 305900100 = 15111^2 + 17490^2 .

It is not a de Polignac number, because 534242421 - 2¹ = 534242419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534242431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104656 + ... + 109641.

Almost surely, 2^534242421 is an apocalyptic number.

It is an amenable number.

534242421 is a deficient number, since it is larger than the sum of its proper divisors (240230551).

534242421 is a wasteful number, since it uses less digits than its factorization.

534242421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214580 (or 214577 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 534242421 is about 23113.6847127411. The cubic root of 534242421 is about 811.4207757582.

Adding to 534242421 its reverse (124242435), we get a palindrome (658484856).

The spelling of 534242421 in words is "five hundred thirty-four million, two hundred forty-two thousand, four hundred twenty-one".