45216140 has 24 divisors (see below), whose sum is σ = 95128992. Its totient is φ = 18053120.

The previous prime is 45216131. The next prime is 45216151. The reversal of 45216140 is 4161254.

45216140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×45216140³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11057 + ... + 14583.

It is an arithmetic number, because the mean of its divisors is an integer number (3963708).

Almost surely, 2^45216140 is an apocalyptic number.

It is an amenable number.

45216140 is an abundant number, since it is smaller than the sum of its proper divisors (49912852).

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

45216140 is a wasteful number, since it uses less digits than its factorization.

45216140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4177 (or 4175 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 45216140 is about 6724.2947585602. The cubic root of 45216140 is about 356.2578929204.

Adding to 45216140 its reverse (4161254), we get a palindrome (49377394).

The spelling of 45216140 in words is "forty-five million, two hundred sixteen thousand, one hundred forty".