45132040 has 16 divisors (see below), whose sum is σ = 101547180. Its totient is φ = 18052800.

The previous prime is 45131993. The next prime is 45132041. The reversal of 45132040 is 4023154.

It can be written as a sum of positive squares in 2 ways, for example, as 44970436 + 161604 = 6706^2 + 402^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45131999 and 45132017.

It is not an unprimeable number, because it can be changed into a prime (45132041) 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, 564111 + ... + 564190.

Almost surely, 2^45132040 is an apocalyptic number.

45132040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45132040 is an abundant number, since it is smaller than the sum of its proper divisors (56415140).

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

45132040 is a wasteful number, since it uses less digits than its factorization.

45132040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128312 (or 1128308 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 45132040 is about 6718.0384041772. The cubic root of 45132040 is about 356.0368812524.

Adding to 45132040 its reverse (4023154), we get a palindrome (49155194).

The spelling of 45132040 in words is "forty-five million, one hundred thirty-two thousand, forty".