404662345 has 16 divisors (see below), whose sum is σ = 507347712. Its totient is φ = 309263680.

The previous prime is 404662343. The next prime is 404662381. The reversal of 404662345 is 543266404.

It is not a de Polignac number, because 404662345 - 2¹ = 404662343 is a prime.

It is a super-2 number, since 2×404662345² = 327503226921798050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404662345.

It is not an unprimeable number, because it can be changed into a prime (404662343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116859 + ... + 120271.

It is an arithmetic number, because the mean of its divisors is an integer number (31709232).

Almost surely, 2^404662345 is an apocalyptic number.

It is an amenable number.

404662345 is a deficient number, since it is larger than the sum of its proper divisors (102685367).

404662345 is a wasteful number, since it uses less digits than its factorization.

404662345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472.

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 404662345 is about 20116.2209423142. The cubic root of 404662345 is about 739.6579530732.

The spelling of 404662345 in words is "four hundred four million, six hundred sixty-two thousand, three hundred forty-five".