28341631242 has 20 divisors (see below), whose sum is σ = 63506248146. Its totient is φ = 9447210360.

The previous prime is 28341631237. The next prime is 28341631247. The reversal of 28341631242 is 24213614382.

It is an interprime number because it is at equal distance from previous prime (28341631237) and next prime (28341631247).

It can be written as a sum of positive squares in only one way, i.e., 23737873041 + 4603758201 = 154071^2 + 67851^2 .

It is a super-2 number, since 2×28341631242² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28341631197 and 28341631206.

It is not an unprimeable number, because it can be changed into a prime (28341631247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 87474009 + ... + 87474332.

Almost surely, 2^28341631242 is an apocalyptic number.

28341631242 is an abundant number, since it is smaller than the sum of its proper divisors (35164616904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28341631242 is a wasteful number, since it uses less digits than its factorization.

28341631242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174948355 (or 174948346 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The spelling of 28341631242 in words is "twenty-eight billion, three hundred forty-one million, six hundred thirty-one thousand, two hundred forty-two".