424620505 has 8 divisors (see below), whose sum is σ = 511359624. Its totient is φ = 338486400.

The previous prime is 424620491. The next prime is 424620517. The reversal of 424620505 is 505026424.

It can be written as a sum of positive squares in 4 ways, for example, as 77580864 + 347039641 = 8808^2 + 18629^2 .

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

It is not a de Polignac number, because 424620505 - 2⁷ = 424620377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149706 + ... + 152515.

It is an arithmetic number, because the mean of its divisors is an integer number (63919953).

Almost surely, 2^424620505 is an apocalyptic number.

It is an amenable number.

424620505 is a deficient number, since it is larger than the sum of its proper divisors (86739119).

424620505 is a wasteful number, since it uses less digits than its factorization.

424620505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302507.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 424620505 is about 20606.3219668140. The cubic root of 424620505 is about 751.6234492736.

Adding to 424620505 its reverse (505026424), we get a palindrome (929646929).

The spelling of 424620505 in words is "four hundred twenty-four million, six hundred twenty thousand, five hundred five".