45102078 has 48 divisors (see below), whose sum is σ = 113592960. Its totient is φ = 12665808.

The previous prime is 45102077. The next prime is 45102089. The reversal of 45102078 is 87020154.

45102078 is a `hidden beast` number, since 451 + 0 + 207 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45102073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4401 + ... + 10467.

It is an arithmetic number, because the mean of its divisors is an integer number (2366520).

Almost surely, 2^45102078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45102078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56796480).

45102078 is an abundant number, since it is smaller than the sum of its proper divisors (68490882).

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

45102078 is a wasteful number, since it uses less digits than its factorization.

45102078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6141 (or 6138 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 45102078 is about 6715.8080675374. The cubic root of 45102078 is about 355.9580759030.

The spelling of 45102078 in words is "forty-five million, one hundred two thousand, seventy-eight".