44231240 has 32 divisors (see below), whose sum is σ = 104760000. Its totient is φ = 16761024.

The previous prime is 44231237. The next prime is 44231249. The reversal of 44231240 is 4213244.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (44231249) 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, 28340 + ... + 29859.

It is an arithmetic number, because the mean of its divisors is an integer number (3273750).

Almost surely, 2^44231240 is an apocalyptic number.

44231240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44231240 is an abundant number, since it is smaller than the sum of its proper divisors (60528760).

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

44231240 is a wasteful number, since it uses less digits than its factorization.

44231240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58229 (or 58225 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 44231240 is about 6650.6571103914. The cubic root of 44231240 is about 353.6522061081.

Adding to 44231240 its reverse (4213244), we get a palindrome (48444484).

The spelling of 44231240 in words is "forty-four million, two hundred thirty-one thousand, two hundred forty".