421641614 has 8 divisors (see below), whose sum is σ = 654271560. Its totient is φ = 203551096.

The previous prime is 421641613. The next prime is 421641707. The reversal of 421641614 is 416146124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421641611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3634784 + ... + 3634899.

It is an arithmetic number, because the mean of its divisors is an integer number (81783945).

Almost surely, 2^421641614 is an apocalyptic number.

421641614 is a deficient number, since it is larger than the sum of its proper divisors (232629946).

421641614 is a wasteful number, since it uses less digits than its factorization.

421641614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7269714.

The product of its digits is 4608, while the sum is 29.

The square root of 421641614 is about 20533.9137526191. The cubic root of 421641614 is about 749.8616716738.

Adding to 421641614 its reverse (416146124), we get a palindrome (837787738).

The spelling of 421641614 in words is "four hundred twenty-one million, six hundred forty-one thousand, six hundred fourteen".