420412686 has 16 divisors (see below), whose sum is σ = 890285904. Its totient is φ = 131894144.

The previous prime is 420412651. The next prime is 420412693. The reversal of 420412686 is 686214024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2060745 + ... + 2060948.

It is an arithmetic number, because the mean of its divisors is an integer number (55642869).

Almost surely, 2^420412686 is an apocalyptic number.

420412686 is an abundant number, since it is smaller than the sum of its proper divisors (469873218).

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

420412686 is a wasteful number, since it uses less digits than its factorization.

420412686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121715.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 420412686 is about 20503.9675672783. The cubic root of 420412686 is about 749.1324403963.

The spelling of 420412686 in words is "four hundred twenty million, four hundred twelve thousand, six hundred eighty-six".