42140441402 has 4 divisors (see below), whose sum is σ = 63210662106. Its totient is φ = 21070220700.

The previous prime is 42140441389. The next prime is 42140441417. The reversal of 42140441402 is 20414404124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 33955801441 + 8184639961 = 184271^2 + 90469^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10535110349 + ... + 10535110352.

Almost surely, 2^42140441402 is an apocalyptic number.

42140441402 is a deficient number, since it is larger than the sum of its proper divisors (21070220704).

42140441402 is a wasteful number, since it uses less digits than its factorization.

42140441402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21070220703.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 42140441402 its reverse (20414404124), we get a palindrome (62554845526).

The spelling of 42140441402 in words is "forty-two billion, one hundred forty million, four hundred forty-one thousand, four hundred two".