44138401 has 2 divisors, whose sum is σ = 44138402. Its totient is φ = 44138400.

The previous prime is 44138383. The next prime is 44138407. The reversal of 44138401 is 10483144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39627025 + 4511376 = 6295^2 + 2124^2 .

It is a cyclic number.

It is not a de Polignac number, because 44138401 - 2¹¹ = 44136353 is a prime.

It is not a weakly prime, because it can be changed into another prime (44138407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22069200 + 22069201.

It is an arithmetic number, because the mean of its divisors is an integer number (22069201).

Almost surely, 2^44138401 is an apocalyptic number.

It is an amenable number.

44138401 is a deficient number, since it is larger than the sum of its proper divisors (1).

44138401 is an equidigital number, since it uses as much as digits as its factorization.

44138401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 44138401 is about 6643.6737577940. The cubic root of 44138401 is about 353.4046004538.

The spelling of 44138401 in words is "forty-four million, one hundred thirty-eight thousand, four hundred one".