45027240 has 32 divisors (see below), whose sum is σ = 135082080. Its totient is φ = 12007232.

The previous prime is 45027239. The next prime is 45027259. The reversal of 45027240 is 4272054.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 45027240.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187494 + ... + 187733.

It is an arithmetic number, because the mean of its divisors is an integer number (4221315).

Almost surely, 2^45027240 is an apocalyptic number.

45027240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45027240 is an abundant number, since it is smaller than the sum of its proper divisors (90054840).

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

45027240 is a wasteful number, since it uses less digits than its factorization.

45027240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375241 (or 375237 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 45027240 is about 6710.2339750563. The cubic root of 45027240 is about 355.7610861749.

Adding to 45027240 its reverse (4272054), we get a palindrome (49299294).

The spelling of 45027240 in words is "forty-five million, twenty-seven thousand, two hundred forty".