402653005 has 16 divisors (see below), whose sum is σ = 497582064. Its totient is φ = 312606720.

The previous prime is 402652979. The next prime is 402653047. The reversal of 402653005 is 500356204.

It can be written as a sum of positive squares in 8 ways, for example, as 63393444 + 339259561 = 7962^2 + 18419^2 .

It is not a de Polignac number, because 402653005 - 2¹⁹ = 402128717 is a prime.

It is a Duffinian number.

It is a congruent 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, 34477 + ... + 44653.

It is an arithmetic number, because the mean of its divisors is an integer number (31098879).

Almost surely, 2^402653005 is an apocalyptic number.

It is an amenable number.

402653005 is a deficient number, since it is larger than the sum of its proper divisors (94929059).

402653005 is a wasteful number, since it uses less digits than its factorization.

402653005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10416.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 402653005 is about 20066.2155126471. The cubic root of 402653005 is about 738.4316705738.

The spelling of 402653005 in words is "four hundred two million, six hundred fifty-three thousand, five".