402713605 has 12 divisors (see below), whose sum is σ = 562155660. Its totient is φ = 276146304.

The previous prime is 402713579. The next prime is 402713609. The reversal of 402713605 is 506317204.

It can be written as a sum of positive squares in 2 ways, for example, as 303073281 + 99640324 = 17409^2 + 9982^2 .

It is not a de Polignac number, because 402713605 - 2⁵ = 402713573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402713609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 821620 + ... + 822109.

It is an arithmetic number, because the mean of its divisors is an integer number (46846305).

Almost surely, 2^402713605 is an apocalyptic number.

It is an amenable number.

402713605 is a deficient number, since it is larger than the sum of its proper divisors (159442055).

402713605 is a wasteful number, since it uses less digits than its factorization.

402713605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643748 (or 1643741 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 402713605 is about 20067.7254565633. The cubic root of 402713605 is about 738.4687138128.

The spelling of 402713605 in words is "four hundred two million, seven hundred thirteen thousand, six hundred five".