44478946 has 4 divisors (see below), whose sum is σ = 66718422. Its totient is φ = 22239472.

The previous prime is 44478923. The next prime is 44478949. The reversal of 44478946 is 64987444.

44478946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 38303721 + 6175225 = 6189^2 + 2485^2 .

It is a junction number, because it is equal to n+sod(n) for n = 44478896 and 44478905.

It is not an unprimeable number, because it can be changed into a prime (44478949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11119735 + ... + 11119738.

Almost surely, 2^44478946 is an apocalyptic number.

44478946 is a deficient number, since it is larger than the sum of its proper divisors (22239476).

44478946 is a wasteful number, since it uses less digits than its factorization.

44478946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22239475.

The product of its digits is 774144, while the sum is 46.

The square root of 44478946 is about 6669.2537813462. The cubic root of 44478946 is about 354.3111577876.

The spelling of 44478946 in words is "forty-four million, four hundred seventy-eight thousand, nine hundred forty-six".