45555240 has 128 divisors (see below), whose sum is σ = 146655360. Its totient is φ = 11280384.

The previous prime is 45555221. The next prime is 45555241. The reversal of 45555240 is 4255554.

45555240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 45555198 and 45555207.

It is not an unprimeable number, because it can be changed into a prime (45555241) 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, 279399 + ... + 279561.

It is an arithmetic number, because the mean of its divisors is an integer number (1145745).

Almost surely, 2^45555240 is an apocalyptic number.

45555240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45555240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73327680).

45555240 is an abundant number, since it is smaller than the sum of its proper divisors (101100120).

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

45555240 is a wasteful number, since it uses less digits than its factorization.

45555240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 45555240 is about 6749.4622007979. The cubic root of 45555240 is about 357.1462652627.

The spelling of 45555240 in words is "forty-five million, five hundred fifty-five thousand, two hundred forty".