44142340 has 48 divisors (see below), whose sum is σ = 101626560. Its totient is φ = 15972480.

The previous prime is 44142337. The next prime is 44142341. The reversal of 44142340 is 4324144.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (44142341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61906 + ... + 62614.

It is an arithmetic number, because the mean of its divisors is an integer number (2117220).

Almost surely, 2^44142340 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 44142340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50813280).

44142340 is an abundant number, since it is smaller than the sum of its proper divisors (57484220).

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

44142340 is a wasteful number, since it uses less digits than its factorization.

44142340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012 (or 1010 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 44142340 is about 6643.9701986087. The cubic root of 44142340 is about 353.4151129877.

Adding to 44142340 its reverse (4324144), we get a palindrome (48466484).

The spelling of 44142340 in words is "forty-four million, one hundred forty-two thousand, three hundred forty".