420006616 has 16 divisors (see below), whose sum is σ = 787822200. Its totient is φ = 209920704.

The previous prime is 420006589. The next prime is 420006659. The reversal of 420006616 is 616600024.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14911 + ... + 32593.

Almost surely, 2^420006616 is an apocalyptic number.

It is an amenable number.

420006616 is a deficient number, since it is larger than the sum of its proper divisors (367815584).

420006616 is a wasteful number, since it uses less digits than its factorization.

420006616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20658 (or 20654 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 420006616 is about 20494.0629451556. The cubic root of 420006616 is about 748.8911709536.

The spelling of 420006616 in words is "four hundred twenty million, six thousand, six hundred sixteen".