302440140040 has 16 divisors (see below), whose sum is σ = 680490315180. Its totient is φ = 120976056000.

The previous prime is 302440140001. The next prime is 302440140049. The reversal of 302440140040 is 40041044203.

It can be written as a sum of positive squares in 2 ways, for example, as 300144005316 + 2296134724 = 547854^2 + 47918^2 .

It is a super-2 number, since 2×302440140040² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 302440139993 and 302440140020.

It is not an unprimeable number, because it can be changed into a prime (302440140049) 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 3 ways as a sum of consecutive naturals, for example, 3780501711 + ... + 3780501790.

Almost surely, 2^302440140040 is an apocalyptic number.

It is an amenable number.

302440140040 is an abundant number, since it is smaller than the sum of its proper divisors (378050175140).

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

302440140040 is a wasteful number, since it uses less digits than its factorization.

302440140040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7561003512 (or 7561003508 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 302440140040 its reverse (40041044203), we get a palindrome (342481184243).

The spelling of 302440140040 in words is "three hundred two billion, four hundred forty million, one hundred forty thousand, forty".