45061980 has 48 divisors (see below), whose sum is σ = 127370880. Its totient is φ = 11902528.

The previous prime is 45061949. The next prime is 45061999. The reversal of 45061980 is 8916054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2911 + ... + 9929.

It is an arithmetic number, because the mean of its divisors is an integer number (2653560).

Almost surely, 2^45061980 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 45061980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63685440).

45061980 is an abundant number, since it is smaller than the sum of its proper divisors (82308900).

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

45061980 is a wasteful number, since it uses less digits than its factorization.

45061980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7138 (or 7136 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 45061980 is about 6712.8220593131. The cubic root of 45061980 is about 355.8525564568.

The spelling of 45061980 in words is "forty-five million, sixty-one thousand, nine hundred eighty".