402656740270 has 16 divisors (see below), whose sum is σ = 729646444800. Its totient is φ = 159981737824.

The previous prime is 402656740219. The next prime is 402656740273. The reversal of 402656740270 is 72047656204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402656740273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135118222 + ... + 135121201.

It is an arithmetic number, because the mean of its divisors is an integer number (45602902800).

Almost surely, 2^402656740270 is an apocalyptic number.

402656740270 is a deficient number, since it is larger than the sum of its proper divisors (326989704530).

402656740270 is a wasteful number, since it uses less digits than its factorization.

402656740270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270239579.

The product of its (nonzero) digits is 564480, while the sum is 43.

The spelling of 402656740270 in words is "four hundred two billion, six hundred fifty-six million, seven hundred forty thousand, two hundred seventy".