404350445 has 4 divisors (see below), whose sum is σ = 485220540. Its totient is φ = 323480352.

The previous prime is 404350411. The next prime is 404350469. The reversal of 404350445 is 544053404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 225780676 + 178569769 = 15026^2 + 13363^2 .

It is a cyclic number.

It is not a de Polignac number, because 404350445 - 2¹⁸ = 404088301 is a prime.

It is a super-3 number, since 3×404350445³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40435040 + ... + 40435049.

It is an arithmetic number, because the mean of its divisors is an integer number (121305135).

Almost surely, 2^404350445 is an apocalyptic number.

It is an amenable number.

404350445 is a deficient number, since it is larger than the sum of its proper divisors (80870095).

404350445 is an equidigital number, since it uses as much as digits as its factorization.

404350445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80870094.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 404350445 is about 20108.4669977599. The cubic root of 404350445 is about 739.4678698136.

The spelling of 404350445 in words is "four hundred four million, three hundred fifty thousand, four hundred forty-five".