421648412 has 6 divisors (see below), whose sum is σ = 737884728. Its totient is φ = 210824204.

The previous prime is 421648393. The next prime is 421648417. The reversal of 421648412 is 214846124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421648417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52706048 + ... + 52706055.

It is an arithmetic number, because the mean of its divisors is an integer number (122980788).

Almost surely, 2^421648412 is an apocalyptic number.

It is an amenable number.

421648412 is a deficient number, since it is larger than the sum of its proper divisors (316236316).

421648412 is a wasteful number, since it uses less digits than its factorization.

421648412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105412107 (or 105412105 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 421648412 is about 20534.0792829871. The cubic root of 421648412 is about 749.8657015830.

Subtracting from 421648412 its product of digits (12288), we obtain a palindrome (421636124).

The spelling of 421648412 in words is "four hundred twenty-one million, six hundred forty-eight thousand, four hundred twelve".