44115142 has 4 divisors (see below), whose sum is σ = 66172716. Its totient is φ = 22057570.

The previous prime is 44115121. The next prime is 44115143. The reversal of 44115142 is 24151144.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×44115142² = 3892291507360328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44115143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11028784 + ... + 11028787.

It is an arithmetic number, because the mean of its divisors is an integer number (16543179).

Almost surely, 2^44115142 is an apocalyptic number.

44115142 is a deficient number, since it is larger than the sum of its proper divisors (22057574).

44115142 is a wasteful number, since it uses less digits than its factorization.

44115142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22057573.

The product of its digits is 640, while the sum is 22.

The square root of 44115142 is about 6641.9230648962. The cubic root of 44115142 is about 353.3425133092.

Adding to 44115142 its reverse (24151144), we get a palindrome (68266286).

The spelling of 44115142 in words is "forty-four million, one hundred fifteen thousand, one hundred forty-two".