420441524 has 24 divisors (see below), whose sum is σ = 751285248. Its totient is φ = 205820640.

The previous prime is 420441523. The next prime is 420441547. The reversal of 420441524 is 425144024.

It is a junction number, because it is equal to n+sod(n) for n = 420441493 and 420441502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420441523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50549 + ... + 58275.

It is an arithmetic number, because the mean of its divisors is an integer number (31303552).

Almost surely, 2^420441524 is an apocalyptic number.

It is an amenable number.

420441524 is a deficient number, since it is larger than the sum of its proper divisors (330843724).

420441524 is a wasteful number, since it uses less digits than its factorization.

420441524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8015 (or 8013 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 420441524 is about 20504.6707849699. The cubic root of 420441524 is about 749.1495687942.

Adding to 420441524 its reverse (425144024), we get a palindrome (845585548).

The spelling of 420441524 in words is "four hundred twenty million, four hundred forty-one thousand, five hundred twenty-four".