420031564 has 6 divisors (see below), whose sum is σ = 735055244. Its totient is φ = 210015780.

The previous prime is 420031559. The next prime is 420031583. The reversal of 420031564 is 465130024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52503942 + ... + 52503949.

Almost surely, 2^420031564 is an apocalyptic number.

It is an amenable number.

420031564 is a deficient number, since it is larger than the sum of its proper divisors (315023680).

420031564 is a wasteful number, since it uses less digits than its factorization.

420031564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105007895 (or 105007893 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 420031564 is about 20494.6716001989. The cubic root of 420031564 is about 748.9059984716.

Adding to 420031564 its reverse (465130024), we get a palindrome (885161588).

The spelling of 420031564 in words is "four hundred twenty million, thirty-one thousand, five hundred sixty-four".