421869696 has 64 divisors (see below), whose sum is σ = 1123632000. Its totient is φ = 140241920.

The previous prime is 421869683. The next prime is 421869709. The reversal of 421869696 is 696968124.

It is an interprime number because it is at equal distance from previous prime (421869683) and next prime (421869709).

It is a tau number, because it is divible by the number of its divisors (64).

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, 164230 + ... + 166778.

It is an arithmetic number, because the mean of its divisors is an integer number (17556750).

Almost surely, 2^421869696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421869696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561816000).

421869696 is an abundant number, since it is smaller than the sum of its proper divisors (701762304).

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

421869696 is a wasteful number, since it uses less digits than its factorization.

421869696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997 (or 2985 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 51.

The square root of 421869696 is about 20539.4667895737. The cubic root of 421869696 is about 749.9968568757.

The spelling of 421869696 in words is "four hundred twenty-one million, eight hundred sixty-nine thousand, six hundred ninety-six".