45444401 has 2 divisors, whose sum is σ = 45444402. Its totient is φ = 45444400.

The previous prime is 45444397. The next prime is 45444437. The reversal of 45444401 is 10444454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23775376 + 21669025 = 4876^2 + 4655^2 .

It is a cyclic number.

It is not a de Polignac number, because 45444401 - 2² = 45444397 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45444461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22722200 + 22722201.

It is an arithmetic number, because the mean of its divisors is an integer number (22722201).

Almost surely, 2^45444401 is an apocalyptic number.

It is an amenable number.

45444401 is a deficient number, since it is larger than the sum of its proper divisors (1).

45444401 is an equidigital number, since it uses as much as digits as its factorization.

45444401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 45444401 is about 6741.2462497672. The cubic root of 45444401 is about 356.8563763038.

Adding to 45444401 its reverse (10444454), we get a palindrome (55888855).

The spelling of 45444401 in words is "forty-five million, four hundred forty-four thousand, four hundred one".