44021807 has 2 divisors, whose sum is σ = 44021808. Its totient is φ = 44021806.

The previous prime is 44021779. The next prime is 44021827. The reversal of 44021807 is 70812044.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44021807 - 2⁶ = 44021743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44021827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22010903 + 22010904.

It is an arithmetic number, because the mean of its divisors is an integer number (22010904).

Almost surely, 2^44021807 is an apocalyptic number.

44021807 is a deficient number, since it is larger than the sum of its proper divisors (1).

44021807 is an equidigital number, since it uses as much as digits as its factorization.

44021807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 44021807 is about 6634.8931415660. The cubic root of 44021807 is about 353.0931468592.

The spelling of 44021807 in words is "forty-four million, twenty-one thousand, eight hundred seven".