72441401 has 2 divisors, whose sum is σ = 72441402. Its totient is φ = 72441400.

The previous prime is 72441377. The next prime is 72441409. The reversal of 72441401 is 10414427.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71233600 + 1207801 = 8440^2 + 1099^2 .

It is a cyclic number.

It is not a de Polignac number, because 72441401 - 2⁶ = 72441337 is a prime.

It is not a weakly prime, because it can be changed into another prime (72441409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36220700 + 36220701.

It is an arithmetic number, because the mean of its divisors is an integer number (36220701).

Almost surely, 2^72441401 is an apocalyptic number.

It is an amenable number.

72441401 is a deficient number, since it is larger than the sum of its proper divisors (1).

72441401 is an equidigital number, since it uses as much as digits as its factorization.

72441401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 72441401 is about 8511.2514355998. The cubic root of 72441401 is about 416.8651731112.

Adding to 72441401 its reverse (10414427), we get a palindrome (82855828).

The spelling of 72441401 in words is "seventy-two million, four hundred forty-one thousand, four hundred one".