445621001 has 8 divisors (see below), whose sum is σ = 525709824. Its totient is φ = 369639360.

The previous prime is 445620991. The next prime is 445621009. The reversal of 445621001 is 100126544.

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

It is a cyclic number.

It is not a de Polignac number, because 445621001 - 2¹⁴ = 445604617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (445621009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1026560 + ... + 1026993.

It is an arithmetic number, because the mean of its divisors is an integer number (65713728).

Almost surely, 2^445621001 is an apocalyptic number.

It is an amenable number.

445621001 is a deficient number, since it is larger than the sum of its proper divisors (80088823).

445621001 is a wasteful number, since it uses less digits than its factorization.

445621001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053591.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 445621001 is about 21109.7371134744. The cubic root of 445621001 is about 763.8156455353.

Adding to 445621001 its reverse (100126544), we get a palindrome (545747545).

The spelling of 445621001 in words is "four hundred forty-five million, six hundred twenty-one thousand, one".