402156040305 has 16 divisors (see below), whose sum is σ = 681299645184. Its totient is φ = 201866561280.

The previous prime is 402156040303. The next prime is 402156040333. The reversal of 402156040305 is 503040651204.

It is not a de Polignac number, because 402156040305 - 2¹ = 402156040303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402156040303) 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 15 ways as a sum of consecutive naturals, for example, 788541001 + ... + 788541510.

It is an arithmetic number, because the mean of its divisors is an integer number (42581227824).

Almost surely, 2^402156040305 is an apocalyptic number.

It is an amenable number.

402156040305 is a deficient number, since it is larger than the sum of its proper divisors (279143604879).

402156040305 is a wasteful number, since it uses less digits than its factorization.

402156040305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577082536.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 402156040305 its reverse (503040651204), we get a palindrome (905196691509).

The spelling of 402156040305 in words is "four hundred two billion, one hundred fifty-six million, forty thousand, three hundred five".