423621415 has 48 divisors (see below), whose sum is σ = 618472800. Its totient is φ = 277385472.

The previous prime is 423621403. The next prime is 423621437. The reversal of 423621415 is 514126324.

It is not a de Polignac number, because 423621415 - 2¹⁷ = 423490343 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 774172 + ... + 774718.

It is an arithmetic number, because the mean of its divisors is an integer number (12884850).

Almost surely, 2^423621415 is an apocalyptic number.

423621415 is a deficient number, since it is larger than the sum of its proper divisors (194851385).

423621415 is a wasteful number, since it uses less digits than its factorization.

423621415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704 (or 697 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 423621415 is about 20582.0653725519. The cubic root of 423621415 is about 751.0334878090.

Adding to 423621415 its reverse (514126324), we get a palindrome (937747739).

It can be divided in two parts, 4236 and 21415, that added together give a triangular number (25651 = T₂₂₆).

The spelling of 423621415 in words is "four hundred twenty-three million, six hundred twenty-one thousand, four hundred fifteen".