420141564 has 18 divisors (see below), whose sum is σ = 1062024600. Its totient is φ = 140047176.

The previous prime is 420141559. The next prime is 420141583. The reversal of 420141564 is 465141024.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

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, 5835264 + ... + 5835335.

Almost surely, 2^420141564 is an apocalyptic number.

It is an amenable number.

420141564 is an abundant number, since it is smaller than the sum of its proper divisors (641883036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420141564 is a wasteful number, since it uses less digits than its factorization.

420141564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11670609 (or 11670604 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 420141564 is about 20497.3550488837. The cubic root of 420141564 is about 748.9713685347.

Adding to 420141564 its reverse (465141024), we get a palindrome (885282588).

The spelling of 420141564 in words is "four hundred twenty million, one hundred forty-one thousand, five hundred sixty-four".