424142505 has 12 divisors (see below), whose sum is σ = 735180420. Its totient is φ = 226209312.

The previous prime is 424142479. The next prime is 424142539. The reversal of 424142505 is 505241424.

It can be written as a sum of positive squares in 2 ways, for example, as 55041561 + 369100944 = 7419^2 + 19212^2 .

It is not a de Polignac number, because 424142505 - 2⁶ = 424142441 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4712650 + ... + 4712739.

It is an arithmetic number, because the mean of its divisors is an integer number (61265035).

Almost surely, 2^424142505 is an apocalyptic number.

424142505 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

424142505 is a deficient number, since it is larger than the sum of its proper divisors (311037915).

424142505 is a wasteful number, since it uses less digits than its factorization.

424142505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9425400 (or 9425397 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 424142505 is about 20594.7203185671. The cubic root of 424142505 is about 751.3413064327.

Adding to 424142505 its reverse (505241424), we get a palindrome (929383929).

The spelling of 424142505 in words is "four hundred twenty-four million, one hundred forty-two thousand, five hundred five".