44253540 has 120 divisors (see below), whose sum is σ = 141482880. Its totient is φ = 11575872.

The previous prime is 44253529. The next prime is 44253551. The reversal of 44253540 is 4535244.

It is an interprime number because it is at equal distance from previous prime (44253529) and next prime (44253551).

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 95349 + ... + 95811.

It is an arithmetic number, because the mean of its divisors is an integer number (1179024).

Almost surely, 2^44253540 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 44253540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70741440).

44253540 is an abundant number, since it is smaller than the sum of its proper divisors (97229340).

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

44253540 is a wasteful number, since it uses less digits than its factorization.

44253540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 44253540 is about 6652.3334251975. Note that the first 3 decimals coincide. The cubic root of 44253540 is about 353.7116295623.

Adding to 44253540 its reverse (4535244), we get a palindrome (48788784).

The spelling of 44253540 in words is "forty-four million, two hundred fifty-three thousand, five hundred forty".