424004445 has 24 divisors (see below), whose sum is σ = 735500376. Its totient is φ = 225963648.

The previous prime is 424004431. The next prime is 424004461. The reversal of 424004445 is 544400424.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43520409 + 380484036 = 6597^2 + 19506^2 .

It is not a de Polignac number, because 424004445 - 2¹³ = 423996253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75267 + ... + 80703.

It is an arithmetic number, because the mean of its divisors is an integer number (30645849).

Almost surely, 2^424004445 is an apocalyptic number.

424004445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

424004445 is a deficient number, since it is larger than the sum of its proper divisors (311495931).

424004445 is a wasteful number, since it uses less digits than its factorization.

424004445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7181 (or 7178 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 424004445 is about 20591.3682158326. The cubic root of 424004445 is about 751.2597761008.

Adding to 424004445 its reverse (544400424), we get a palindrome (968404869).

The spelling of 424004445 in words is "four hundred twenty-four million, four thousand, four hundred forty-five".