44621142 has 16 divisors (see below), whose sum is σ = 91141632. Its totient is φ = 14557160.

The previous prime is 44621123. The next prime is 44621147. The reversal of 44621142 is 24112644.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44621147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78834 + ... + 79397.

It is an arithmetic number, because the mean of its divisors is an integer number (5696352).

Almost surely, 2^44621142 is an apocalyptic number.

44621142 is an abundant number, since it is smaller than the sum of its proper divisors (46520490).

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

44621142 is a wasteful number, since it uses less digits than its factorization.

44621142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158283.

The product of its digits is 1536, while the sum is 24.

The square root of 44621142 is about 6679.9058376597. The cubic root of 44621142 is about 354.6883252661.

Adding to 44621142 its reverse (24112644), we get a palindrome (68733786).

The spelling of 44621142 in words is "forty-four million, six hundred twenty-one thousand, one hundred forty-two".