420006650 has 48 divisors (see below), whose sum is σ = 896728320. Its totient is φ = 143371200.

The previous prime is 420006589. The next prime is 420006659. The reversal of 420006650 is 56600024.

It is not an unprimeable number, because it can be changed into a prime (420006659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81140 + ... + 86160.

It is an arithmetic number, because the mean of its divisors is an integer number (18681840).

Almost surely, 2^420006650 is an apocalyptic number.

420006650 is an abundant number, since it is smaller than the sum of its proper divisors (476721670).

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

420006650 is a wasteful number, since it uses less digits than its factorization.

420006650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5279 (or 5274 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 420006650 is about 20494.0637746641. The cubic root of 420006650 is about 748.8911911614.

Adding to 420006650 its reverse (56600024), we get a palindrome (476606674).

The spelling of 420006650 in words is "four hundred twenty million, six thousand, six hundred fifty".