424445401 has 4 divisors (see below), whose sum is σ = 424640272. Its totient is φ = 424250532.

The previous prime is 424445383. The next prime is 424445419. The reversal of 424445401 is 104544424.

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 an interprime number because it is at equal distance from previous prime (424445383) and next prime (424445419).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424445401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 424445401.

It is not an unprimeable number, because it can be changed into a prime (424445501) 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, 94131 + ... + 98536.

It is an arithmetic number, because the mean of its divisors is an integer number (106160068).

Almost surely, 2^424445401 is an apocalyptic number.

It is an amenable number.

424445401 is a deficient number, since it is larger than the sum of its proper divisors (194871).

424445401 is a wasteful number, since it uses less digits than its factorization.

424445401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194870.

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 424445401 is about 20602.0727355283. The cubic root of 424445401 is about 751.5201175014.

Adding to 424445401 its reverse (104544424), we get a palindrome (528989825).

The spelling of 424445401 in words is "four hundred twenty-four million, four hundred forty-five thousand, four hundred one".