404766545 has 8 divisors (see below), whose sum is σ = 487024296. Its totient is φ = 322943616.

The previous prime is 404766539. The next prime is 404766553. The reversal of 404766545 is 545667404.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1399489 + 403367056 = 1183^2 + 20084^2 .

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 404766545 - 2⁴ = 404766529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106652 + ... + 110381.

It is an arithmetic number, because the mean of its divisors is an integer number (60878037).

Almost surely, 2^404766545 is an apocalyptic number.

It is an amenable number.

404766545 is a deficient number, since it is larger than the sum of its proper divisors (82257751).

404766545 is a wasteful number, since it uses less digits than its factorization.

404766545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217411.

The product of its (nonzero) digits is 403200, while the sum is 41.

The square root of 404766545 is about 20118.8107252889. The cubic root of 404766545 is about 739.7214345949.

The spelling of 404766545 in words is "four hundred four million, seven hundred sixty-six thousand, five hundred forty-five".