404142445 has 48 divisors (see below), whose sum is σ = 628896960. Its totient is φ = 247048704.

The previous prime is 404142413. The next prime is 404142457. The reversal of 404142445 is 544241404.

It is not a de Polignac number, because 404142445 - 2⁵ = 404142413 is a prime.

It is a super-2 number, since 2×404142445² = 326662231701156050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76582 + ... + 81688.

It is an arithmetic number, because the mean of its divisors is an integer number (13102020).

Almost surely, 2^404142445 is an apocalyptic number.

It is an amenable number.

404142445 is a deficient number, since it is larger than the sum of its proper divisors (224754515).

404142445 is a wasteful number, since it uses less digits than its factorization.

404142445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5162 (or 5155 counting only the distinct ones).

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

The square root of 404142445 is about 20103.2943817674. The cubic root of 404142445 is about 739.3410526762.

Adding to 404142445 its reverse (544241404), we get a palindrome (948383849).

The spelling of 404142445 in words is "four hundred four million, one hundred forty-two thousand, four hundred forty-five".