402060440245 has 16 divisors (see below), whose sum is σ = 495646769520. Its totient is φ = 312870242304.

The previous prime is 402060440203. The next prime is 402060440303. The reversal of 402060440245 is 542044060204.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 22534212996 + 379526227249 = 150114^2 + 616057^2 .

It is a cyclic number.

It is not a de Polignac number, because 402060440245 - 2²⁷ = 401926222517 is a prime.

It is a super-2 number, since 2×402060440245² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393189 + ... + 979141.

It is an arithmetic number, because the mean of its divisors is an integer number (30977923095).

Almost surely, 2^402060440245 is an apocalyptic number.

It is an amenable number.

402060440245 is a deficient number, since it is larger than the sum of its proper divisors (93586329275).

402060440245 is a wasteful number, since it uses less digits than its factorization.

402060440245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589704.

The product of its (nonzero) digits is 30720, while the sum is 31.

The spelling of 402060440245 in words is "four hundred two billion, sixty million, four hundred forty thousand, two hundred forty-five".