421468686 has 24 divisors (see below), whose sum is σ = 922600224. Its totient is φ = 139040640.

The previous prime is 421468673. The next prime is 421468699. The reversal of 421468686 is 686864124.

It is an interprime number because it is at equal distance from previous prime (421468673) and next prime (421468699).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118950 + ... + 122441.

It is an arithmetic number, because the mean of its divisors is an integer number (38441676).

Almost surely, 2^421468686 is an apocalyptic number.

421468686 is an abundant number, since it is smaller than the sum of its proper divisors (501131538).

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

421468686 is a wasteful number, since it uses less digits than its factorization.

421468686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241496 (or 241493 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 421468686 is about 20529.7025307236. The cubic root of 421468686 is about 749.7591439928.

It can be divided in two parts, 4214 and 68686, that added together give a square (72900 = 270²).

The spelling of 421468686 in words is "four hundred twenty-one million, four hundred sixty-eight thousand, six hundred eighty-six".