404454545 has 32 divisors (see below), whose sum is σ = 550682496. Its totient is φ = 282585600.

The previous prime is 404454541. The next prime is 404454571. The reversal of 404454545 is 545454404.

It is not a de Polignac number, because 404454545 - 2² = 404454541 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404454541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149747 + ... + 152423.

It is an arithmetic number, because the mean of its divisors is an integer number (17208828).

Almost surely, 2^404454545 is an apocalyptic number.

It is an amenable number.

404454545 is a deficient number, since it is larger than the sum of its proper divisors (146227951).

404454545 is a wasteful number, since it uses less digits than its factorization.

404454545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2801.

The product of its (nonzero) digits is 128000, while the sum is 35.

The square root of 404454545 is about 20111.0552930472. The cubic root of 404454545 is about 739.5313230229.

The spelling of 404454545 in words is "four hundred four million, four hundred fifty-four thousand, five hundred forty-five".