45522140 has 12 divisors (see below), whose sum is σ = 95596536. Its totient is φ = 18208848.

The previous prime is 45522137. The next prime is 45522149. The reversal of 45522140 is 4122554.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45522149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1138034 + ... + 1138073.

It is an arithmetic number, because the mean of its divisors is an integer number (7966378).

Almost surely, 2^45522140 is an apocalyptic number.

It is an amenable number.

45522140 is an abundant number, since it is smaller than the sum of its proper divisors (50074396).

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

45522140 is a wasteful number, since it uses less digits than its factorization.

45522140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276116 (or 2276114 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 45522140 is about 6747.0097080114. The cubic root of 45522140 is about 357.0597446219.

Adding to 45522140 its reverse (4122554), we get a palindrome (49644694).

The spelling of 45522140 in words is "forty-five million, five hundred twenty-two thousand, one hundred forty".