44121478 has 4 divisors (see below), whose sum is σ = 66182220. Its totient is φ = 22060738.

The previous prime is 44121461. The next prime is 44121479. The reversal of 44121478 is 87412144.

It is a happy number.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44121479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11030368 + ... + 11030371.

It is an arithmetic number, because the mean of its divisors is an integer number (16545555).

Almost surely, 2^44121478 is an apocalyptic number.

44121478 is a deficient number, since it is larger than the sum of its proper divisors (22060742).

44121478 is a wasteful number, since it uses less digits than its factorization.

44121478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22060741.

The product of its digits is 7168, while the sum is 31.

The square root of 44121478 is about 6642.4000180658. The cubic root of 44121478 is about 353.3594286727.

The spelling of 44121478 in words is "forty-four million, one hundred twenty-one thousand, four hundred seventy-eight".