404077481 has 8 divisors (see below), whose sum is σ = 421804104. Its totient is φ = 386709120.

The previous prime is 404077477. The next prime is 404077483. The reversal of 404077481 is 184770404.

It can be written as a sum of positive squares in 4 ways, for example, as 90079081 + 313998400 = 9491^2 + 17720^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404077481 - 2² = 404077477 is a prime.

It is a super-2 number, since 2×404077481² = 326557221302610722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404077483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87260 + ... + 91773.

It is an arithmetic number, because the mean of its divisors is an integer number (52725513).

Almost surely, 2^404077481 is an apocalyptic number.

It is an amenable number.

404077481 is a deficient number, since it is larger than the sum of its proper divisors (17726623).

404077481 is a wasteful number, since it uses less digits than its factorization.

404077481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179131.

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 404077481 is about 20101.6785617520. The cubic root of 404077481 is about 739.3014353527.

The spelling of 404077481 in words is "four hundred four million, seventy-seven thousand, four hundred eighty-one".