140220002402 has 4 divisors (see below), whose sum is σ = 210330003606. Its totient is φ = 70110001200.

The previous prime is 140220002387. The next prime is 140220002407. The reversal of 140220002402 is 204200022041.

It is a happy number.

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., 137137643041 + 3082359361 = 370321^2 + 55519^2 .

It is not an unprimeable number, because it can be changed into a prime (140220002407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35055000599 + ... + 35055000602.

Almost surely, 2^140220002402 is an apocalyptic number.

140220002402 is a deficient number, since it is larger than the sum of its proper divisors (70110001204).

140220002402 is an equidigital number, since it uses as much as digits as its factorization.

140220002402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70110001203.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 140220002402 its reverse (204200022041), we get a palindrome (344420024443).

The spelling of 140220002402 in words is "one hundred forty billion, two hundred twenty million, two thousand, four hundred two".