45442152340 has 24 divisors (see below), whose sum is σ = 102769175880. Its totient is φ = 16778640768.

The previous prime is 45442152307. The next prime is 45442152341. The reversal of 45442152340 is 4325124454.

It can be written as a sum of positive squares in 4 ways, for example, as 1817146384 + 43625005956 = 42628^2 + 208866^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45442152296 and 45442152305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45442152341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87388495 + ... + 87389014.

It is an arithmetic number, because the mean of its divisors is an integer number (4282048995).

Almost surely, 2^45442152340 is an apocalyptic number.

It is an amenable number.

45442152340 is an abundant number, since it is smaller than the sum of its proper divisors (57327023540).

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

45442152340 is a wasteful number, since it uses less digits than its factorization.

45442152340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174777531 (or 174777529 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 45442152340 its reverse (4325124454), we get a palindrome (49767276794).

The spelling of 45442152340 in words is "forty-five billion, four hundred forty-two million, one hundred fifty-two thousand, three hundred forty".