45220878 has 24 divisors (see below), whose sum is σ = 101140416. Its totient is φ = 14587200.

The previous prime is 45220871. The next prime is 45220883. The reversal of 45220878 is 87802254.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45220871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39963 + ... + 41078.

It is an arithmetic number, because the mean of its divisors is an integer number (4214184).

Almost surely, 2^45220878 is an apocalyptic number.

45220878 is an abundant number, since it is smaller than the sum of its proper divisors (55919538).

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

45220878 is a wasteful number, since it uses less digits than its factorization.

45220878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81080 (or 81077 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 45220878 is about 6724.6470539352. The cubic root of 45220878 is about 356.2703360506.

The spelling of 45220878 in words is "forty-five million, two hundred twenty thousand, eight hundred seventy-eight".