44220428 has 24 divisors (see below), whose sum is σ = 89258400. Its totient is φ = 18776448.

The previous prime is 44220409. The next prime is 44220437. The reversal of 44220428 is 82402244.

It is a junction number, because it is equal to n+sod(n) for n = 44220397 and 44220406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4193 + ... + 10296.

It is an arithmetic number, because the mean of its divisors is an integer number (3719100).

Almost surely, 2^44220428 is an apocalyptic number.

It is an amenable number.

44220428 is an abundant number, since it is smaller than the sum of its proper divisors (45037972).

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

44220428 is a wasteful number, since it uses less digits than its factorization.

44220428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14609 (or 14607 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 44220428 is about 6649.8442087014. The cubic root of 44220428 is about 353.6233878697.

The spelling of 44220428 in words is "forty-four million, two hundred twenty thousand, four hundred twenty-eight".