421245006 has 96 divisors (see below), whose sum is σ = 1104254208. Its totient is φ = 104532480.

The previous prime is 421244969. The next prime is 421245053. The reversal of 421245006 is 600542124.

It is a super-3 number, since 3×421245006³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118921 + ... + 122411.

It is an arithmetic number, because the mean of its divisors is an integer number (11502648).

Almost surely, 2^421245006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421245006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (552127104).

421245006 is an abundant number, since it is smaller than the sum of its proper divisors (683009202).

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

421245006 is a wasteful number, since it uses less digits than its factorization.

421245006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546 (or 3533 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 421245006 is about 20524.2540911966. The cubic root of 421245006 is about 749.6264842344.

The spelling of 421245006 in words is "four hundred twenty-one million, two hundred forty-five thousand, six".