421041624 has 16 divisors (see below), whose sum is σ = 1052604120. Its totient is φ = 140347200.

The previous prime is 421041563. The next prime is 421041637. The reversal of 421041624 is 426140124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 17543401 = 421041624 / (4 + 2 + 1 + 0 + 4 + 1 + 6 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 421041594 and 421041603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8771677 + ... + 8771724.

Almost surely, 2^421041624 is an apocalyptic number.

It is an amenable number.

421041624 is an abundant number, since it is smaller than the sum of its proper divisors (631562496).

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

421041624 is a wasteful number, since it uses less digits than its factorization.

421041624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17543410 (or 17543406 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 421041624 is about 20519.2988184294. The cubic root of 421041624 is about 749.5058220112.

Adding to 421041624 its reverse (426140124), we get a palindrome (847181748).

The spelling of 421041624 in words is "four hundred twenty-one million, forty-one thousand, six hundred twenty-four".