45945522 has 64 divisors (see below), whose sum is σ = 117469440. Its totient is φ = 13039488.

The previous prime is 45945521. The next prime is 45945539. The reversal of 45945522 is 22554954.

45945522 is a `hidden beast` number, since 45 + 94 + 5 + 522 = 666.

45945522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×45945522² = 4221981983704968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45945521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74158 + ... + 74774.

It is an arithmetic number, because the mean of its divisors is an integer number (1835460).

Almost surely, 2^45945522 is an apocalyptic number.

45945522 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 45945522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58734720).

45945522 is an abundant number, since it is smaller than the sum of its proper divisors (71523918).

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

45945522 is a wasteful number, since it uses less digits than its factorization.

45945522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832 (or 826 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 45945522 is about 6778.3126218846. The cubic root of 45945522 is about 358.1632839202.

The spelling of 45945522 in words is "forty-five million, nine hundred forty-five thousand, five hundred twenty-two".