45040632 has 128 divisors (see below), whose sum is σ = 142248960. Its totient is φ = 11566080.

The previous prime is 45040577. The next prime is 45040637. The reversal of 45040632 is 23604054.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45040637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89293 + ... + 89795.

It is an arithmetic number, because the mean of its divisors is an integer number (1111320).

Almost surely, 2^45040632 is an apocalyptic number.

45040632 is a gapful number since it is divisible by the number (42) 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 45040632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71124480).

45040632 is an abundant number, since it is smaller than the sum of its proper divisors (97208328).

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

45040632 is a wasteful number, since it uses less digits than its factorization.

45040632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 45040632 is about 6711.2317796363. The cubic root of 45040632 is about 355.7963528284.

Adding to 45040632 its reverse (23604054), we get a palindrome (68644686).

The spelling of 45040632 in words is "forty-five million, forty thousand, six hundred thirty-two".