402252564730 has 16 divisors (see below), whose sum is σ = 730462181544. Its totient is φ = 159477122560.

The previous prime is 402252564713. The next prime is 402252564733. The reversal of 402252564730 is 37465252204.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 282793159089 + 119459405641 = 531783^2 + 345629^2 .

It is not an unprimeable number, because it can be changed into a prime (402252564733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177986731 + ... + 177988990.

Almost surely, 2^402252564730 is an apocalyptic number.

402252564730 is a deficient number, since it is larger than the sum of its proper divisors (328209616814).

402252564730 is a wasteful number, since it uses less digits than its factorization.

402252564730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355975841.

The product of its (nonzero) digits is 403200, while the sum is 40.

The spelling of 402252564730 in words is "four hundred two billion, two hundred fifty-two million, five hundred sixty-four thousand, seven hundred thirty".