45547140 has 48 divisors (see below), whose sum is σ = 129947328. Its totient is φ = 11915904.

The previous prime is 45547133. The next prime is 45547141. The reversal of 45547140 is 4174554.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 45547098 and 45547107.

It is not an unprimeable number, because it can be changed into a prime (45547141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3982 + ... + 10341.

It is an arithmetic number, because the mean of its divisors is an integer number (2707236).

Almost surely, 2^45547140 is an apocalyptic number.

It is an amenable number.

45547140 is an abundant number, since it is smaller than the sum of its proper divisors (84400188).

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

45547140 is a wasteful number, since it uses less digits than its factorization.

45547140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14388 (or 14386 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 45547140 is about 6748.8621263143. The cubic root of 45547140 is about 357.1250964120.

The spelling of 45547140 in words is "forty-five million, five hundred forty-seven thousand, one hundred forty".