441621429 has 4 divisors (see below), whose sum is σ = 588828576. Its totient is φ = 294414284.

The previous prime is 441621361. The next prime is 441621451. The reversal of 441621429 is 924126144.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 441621429 - 2¹² = 441617333 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 441621429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441620429) 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, 73603569 + ... + 73603574.

It is an arithmetic number, because the mean of its divisors is an integer number (147207144).

Almost surely, 2^441621429 is an apocalyptic number.

It is an amenable number.

441621429 is a deficient number, since it is larger than the sum of its proper divisors (147207147).

441621429 is a wasteful number, since it uses less digits than its factorization.

441621429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147207146.

The product of its digits is 13824, while the sum is 33.

The square root of 441621429 is about 21014.7907198716. The cubic root of 441621429 is about 761.5236222384.

The spelling of 441621429 in words is "four hundred forty-one million, six hundred twenty-one thousand, four hundred twenty-nine".