44252440 has 16 divisors (see below), whose sum is σ = 99568080. Its totient is φ = 17700960.

The previous prime is 44252423. The next prime is 44252441. The reversal of 44252440 is 4425244.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44252441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553116 + ... + 553195.

It is an arithmetic number, because the mean of its divisors is an integer number (6223005).

Almost surely, 2^44252440 is an apocalyptic number.

44252440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44252440 is an abundant number, since it is smaller than the sum of its proper divisors (55315640).

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

44252440 is a wasteful number, since it uses less digits than its factorization.

44252440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106322 (or 1106318 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 44252440 is about 6652.2507469277. The cubic root of 44252440 is about 353.7086988287.

Adding to 44252440 its reverse (4425244), we get a palindrome (48677684).

The spelling of 44252440 in words is "forty-four million, two hundred fifty-two thousand, four hundred forty".