44640132 has 12 divisors (see below), whose sum is σ = 104160336. Its totient is φ = 14880040.

The previous prime is 44640131. The next prime is 44640133. The reversal of 44640132 is 23104644.

It is an interprime number because it is at equal distance from previous prime (44640131) and next prime (44640133).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (44640131) 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 3 ways as a sum of consecutive naturals, for example, 1859994 + ... + 1860017.

It is an arithmetic number, because the mean of its divisors is an integer number (8680028).

Almost surely, 2^44640132 is an apocalyptic number.

It is an amenable number.

44640132 is an abundant number, since it is smaller than the sum of its proper divisors (59520204).

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

44640132 is a wasteful number, since it uses less digits than its factorization.

44640132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720018 (or 3720016 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 44640132 is about 6681.3271136803. The cubic root of 44640132 is about 354.7386345717.

Adding to 44640132 its reverse (23104644), we get a palindrome (67744776).

The spelling of 44640132 in words is "forty-four million, six hundred forty thousand, one hundred thirty-two".