72270340142 has 64 divisors (see below), whose sum is σ = 146132356608. Its totient is φ = 25887600000.

The previous prime is 72270340127. The next prime is 72270340151. The reversal of 72270340142 is 24104307227.

It is a junction number, because it is equal to n+sod(n) for n = 72270340099 and 72270340108.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 430592 + ... + 574412.

It is an arithmetic number, because the mean of its divisors is an integer number (2283318072).

Almost surely, 2^72270340142 is an apocalyptic number.

72270340142 is an abundant number, since it is smaller than the sum of its proper divisors (73862016466).

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

72270340142 is a wasteful number, since it uses less digits than its factorization.

72270340142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144105.

The product of its (nonzero) digits is 18816, while the sum is 32.

Adding to 72270340142 its reverse (24104307227), we get a palindrome (96374647369).

The spelling of 72270340142 in words is "seventy-two billion, two hundred seventy million, three hundred forty thousand, one hundred forty-two".