404024649 has 12 divisors (see below), whose sum is σ = 626650704. Its totient is φ = 230871144.

The previous prime is 404024641. The next prime is 404024651. The reversal of 404024649 is 946420404.

It is not a de Polignac number, because 404024649 - 2³ = 404024641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404024641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1374087 + ... + 1374380.

It is an arithmetic number, because the mean of its divisors is an integer number (52220892).

Almost surely, 2^404024649 is an apocalyptic number.

404024649 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

404024649 is a deficient number, since it is larger than the sum of its proper divisors (222626055).

404024649 is a wasteful number, since it uses less digits than its factorization.

404024649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748484 (or 2748477 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 404024649 is about 20100.3643996819. The cubic root of 404024649 is about 739.2692134170.

The spelling of 404024649 in words is "four hundred four million, twenty-four thousand, six hundred forty-nine".