424001505 has 16 divisors (see below), whose sum is σ = 718308864. Its totient is φ = 212832000.

The previous prime is 424001497. The next prime is 424001509. The reversal of 424001505 is 505100424.

It is not a de Polignac number, because 424001505 - 2³ = 424001497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (424001509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 831121 + ... + 831630.

It is an arithmetic number, because the mean of its divisors is an integer number (44894304).

Almost surely, 2^424001505 is an apocalyptic number.

It is an amenable number.

424001505 is a deficient number, since it is larger than the sum of its proper divisors (294307359).

424001505 is a wasteful number, since it uses less digits than its factorization.

424001505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662776.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 424001505 is about 20591.2968265721. The cubic root of 424001505 is about 751.2580397127.

Adding to 424001505 its reverse (505100424), we get a palindrome (929101929).

The spelling of 424001505 in words is "four hundred twenty-four million, one thousand, five hundred five".