45940340420 has 48 divisors (see below), whose sum is σ = 103997031600. Its totient is φ = 16946067456.

The previous prime is 45940340399. The next prime is 45940340437. The reversal of 45940340420 is 2404304954.

It can be written as a sum of positive squares in 8 ways, for example, as 3491155396 + 42449185024 = 59086^2 + 206032^2 .

It is a super-2 number, since 2×45940340420² (a number of 22 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 183056 + ... + 354104.

It is an arithmetic number, because the mean of its divisors is an integer number (2166604825).

Almost surely, 2^45940340420 is an apocalyptic number.

It is an amenable number.

45940340420 is an abundant number, since it is smaller than the sum of its proper divisors (58056691180).

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

45940340420 is a wasteful number, since it uses less digits than its factorization.

45940340420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172104 (or 172102 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 45940340420 in words is "forty-five billion, nine hundred forty million, three hundred forty thousand, four hundred twenty".