44220129 has 16 divisors (see below), whose sum is σ = 59704320. Its totient is φ = 29111040.

The previous prime is 44220119. The next prime is 44220131. The reversal of 44220129 is 92102244.

It is a de Polignac number, because none of the positive numbers 2^k-44220129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44220099 and 44220108.

It is not an unprimeable number, because it can be changed into a prime (44220109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131049 + ... + 131385.

It is an arithmetic number, because the mean of its divisors is an integer number (3731520).

Almost surely, 2^44220129 is an apocalyptic number.

It is an amenable number.

44220129 is a deficient number, since it is larger than the sum of its proper divisors (15484191).

44220129 is a wasteful number, since it uses less digits than its factorization.

44220129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 44220129 is about 6649.8217269337. The cubic root of 44220129 is about 353.6225908502.

The spelling of 44220129 in words is "forty-four million, two hundred twenty thousand, one hundred twenty-nine".