441350021 has 16 divisors (see below), whose sum is σ = 513889920. Its totient is φ = 371247360.

The previous prime is 441349991. The next prime is 441350051. The reversal of 441350021 is 120053144.

It is an interprime number because it is at equal distance from previous prime (441349991) and next prime (441350051).

It is a cyclic number.

It is not a de Polignac number, because 441350021 - 2¹⁸ = 441087877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 441349975 and 441350002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441350051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82766 + ... + 87936.

It is an arithmetic number, because the mean of its divisors is an integer number (32118120).

Almost surely, 2^441350021 is an apocalyptic number.

It is an amenable number.

441350021 is a deficient number, since it is larger than the sum of its proper divisors (72539899).

441350021 is a wasteful number, since it uses less digits than its factorization.

441350021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 441350021 is about 21008.3321803517. The cubic root of 441350021 is about 761.3675866652.

The spelling of 441350021 in words is "four hundred forty-one million, three hundred fifty thousand, twenty-one".