420241544 has 24 divisors (see below), whose sum is σ = 831612510. Its totient is φ = 199060416.

The previous prime is 420241531. The next prime is 420241663. The reversal of 420241544 is 445142024.

It can be written as a sum of positive squares in only one way, i.e., 359557444 + 60684100 = 18962^2 + 7790^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69869 + ... + 75644.

Almost surely, 2^420241544 is an apocalyptic number.

It is an amenable number.

420241544 is a deficient number, since it is larger than the sum of its proper divisors (411370966).

420241544 is a wasteful number, since it uses less digits than its factorization.

420241544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145557 (or 145534 counting only the distinct ones).

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

The square root of 420241544 is about 20499.7937550601. The cubic root of 420241544 is about 749.0307740818.

Adding to 420241544 its reverse (445142024), we get a palindrome (865383568).

The spelling of 420241544 in words is "four hundred twenty million, two hundred forty-one thousand, five hundred forty-four".