407665345 has 8 divisors (see below), whose sum is σ = 504979200. Its totient is φ = 315611760.

The previous prime is 407665343. The next prime is 407665369. The reversal of 407665345 is 543566704.

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

It is not a de Polignac number, because 407665345 - 2¹ = 407665343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 407665298 and 407665307.

It is not an unprimeable number, because it can be changed into a prime (407665343) 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 7 ways as a sum of consecutive naturals, for example, 1314895 + ... + 1315204.

It is an arithmetic number, because the mean of its divisors is an integer number (63122400).

Almost surely, 2^407665345 is an apocalyptic number.

It is an amenable number.

407665345 is a deficient number, since it is larger than the sum of its proper divisors (97313855).

407665345 is a wasteful number, since it uses less digits than its factorization.

407665345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630135.

The product of its (nonzero) digits is 302400, while the sum is 40.

The square root of 407665345 is about 20190.7242316862. The cubic root of 407665345 is about 741.4831133248.

The spelling of 407665345 in words is "four hundred seven million, six hundred sixty-five thousand, three hundred forty-five".