45522378 has 48 divisors (see below), whose sum is σ = 111209280. Its totient is φ = 13792680.

The previous prime is 45522377. The next prime is 45522383. The reversal of 45522378 is 87322554.

It is not an unprimeable number, because it can be changed into a prime (45522371) 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, 3051 + ... + 10017.

It is an arithmetic number, because the mean of its divisors is an integer number (2316860).

Almost surely, 2^45522378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45522378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55604640).

45522378 is an abundant number, since it is smaller than the sum of its proper divisors (65686902).

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

45522378 is a wasteful number, since it uses less digits than its factorization.

45522378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7000 (or 6983 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 45522378 is about 6747.0273454315. The cubic root of 45522378 is about 357.0603668837.

The spelling of 45522378 in words is "forty-five million, five hundred twenty-two thousand, three hundred seventy-eight".