45671232 has 56 divisors (see below), whose sum is σ = 121854976. Its totient is φ = 15095808.

The previous prime is 45671191. The next prime is 45671233. The reversal of 45671232 is 23217654.

It is a super-2 number, since 2×45671232² = 4171722864795648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45671232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45671233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23448 + ... + 25320.

Almost surely, 2^45671232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45671232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60927488).

45671232 is an abundant number, since it is smaller than the sum of its proper divisors (76183744).

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

45671232 is a wasteful number, since it uses less digits than its factorization.

45671232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015 (or 2005 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 45671232 is about 6758.0494227255. The cubic root of 45671232 is about 357.4491283344.

Adding to 45671232 its reverse (23217654), we get a palindrome (68888886).

The spelling of 45671232 in words is "forty-five million, six hundred seventy-one thousand, two hundred thirty-two".