402606065 has 16 divisors (see below), whose sum is σ = 498422592. Its totient is φ = 311966784.

The previous prime is 402606047. The next prime is 402606079. The reversal of 402606065 is 560606204.

It is a cyclic number.

It is not a de Polignac number, because 402606065 - 2⁸ = 402605809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37202 + ... + 46788.

It is an arithmetic number, because the mean of its divisors is an integer number (31151412).

Almost surely, 2^402606065 is an apocalyptic number.

It is an amenable number.

402606065 is a deficient number, since it is larger than the sum of its proper divisors (95816527).

402606065 is a wasteful number, since it uses less digits than its factorization.

402606065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9856.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 402606065 is about 20065.0458509319. The cubic root of 402606065 is about 738.4029747909.

The spelling of 402606065 in words is "four hundred two million, six hundred six thousand, sixty-five".