45156980 has 48 divisors (see below), whose sum is σ = 104739264. Its totient is φ = 16216320.

The previous prime is 45156961. The next prime is 45157033. The reversal of 45156980 is 8965154.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17024 + ... + 19496.

It is an arithmetic number, because the mean of its divisors is an integer number (2182068).

Almost surely, 2^45156980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45156980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52369632).

45156980 is an abundant number, since it is smaller than the sum of its proper divisors (59582284).

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

45156980 is a wasteful number, since it uses less digits than its factorization.

45156980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576 (or 2574 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 45156980 is about 6719.8943444075. The cubic root of 45156980 is about 356.1024512607.

The spelling of 45156980 in words is "forty-five million, one hundred fifty-six thousand, nine hundred eighty".