45232128 has 104 divisors (see below), whose sum is σ = 134332400. Its totient is φ = 15040512.

The previous prime is 45232127. The next prime is 45232139. The reversal of 45232128 is 82123254.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (45232127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110388 + ... + 110796.

Almost surely, 2^45232128 is an apocalyptic number.

45232128 is a gapful number since it is divisible by the number (48) 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 45232128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67166200).

45232128 is an abundant number, since it is smaller than the sum of its proper divisors (89100272).

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

45232128 is an equidigital number, since it uses as much as digits as its factorization.

45232128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 414 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 45232128 is about 6725.4834770446. The cubic root of 45232128 is about 356.2998777809.

The spelling of 45232128 in words is "forty-five million, two hundred thirty-two thousand, one hundred twenty-eight".