44638142 has 4 divisors (see below), whose sum is σ = 66957216. Its totient is φ = 22319070.

The previous prime is 44638123. The next prime is 44638151. The reversal of 44638142 is 24183644.

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

It is a junction number, because it is equal to n+sod(n) for n = 44638099 and 44638108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11159534 + ... + 11159537.

It is an arithmetic number, because the mean of its divisors is an integer number (16739304).

Almost surely, 2^44638142 is an apocalyptic number.

44638142 is a deficient number, since it is larger than the sum of its proper divisors (22319074).

44638142 is a wasteful number, since it uses less digits than its factorization.

44638142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22319073.

The product of its digits is 18432, while the sum is 32.

The square root of 44638142 is about 6681.1781895112. The cubic root of 44638142 is about 354.7333632285.

The spelling of 44638142 in words is "forty-four million, six hundred thirty-eight thousand, one hundred forty-two".