39457441 has 2 divisors, whose sum is σ = 39457442. Its totient is φ = 39457440.

The previous prime is 39457403. The next prime is 39457447. The reversal of 39457441 is 14475493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38937600 + 519841 = 6240^2 + 721^2 .

It is an emirp because it is prime and its reverse (14475493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39457441 - 2¹⁵ = 39424673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39457441.

It is not a weakly prime, because it can be changed into another prime (39457447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19728720 + 19728721.

It is an arithmetic number, because the mean of its divisors is an integer number (19728721).

Almost surely, 2^39457441 is an apocalyptic number.

It is an amenable number.

39457441 is a deficient number, since it is larger than the sum of its proper divisors (1).

39457441 is an equidigital number, since it uses as much as digits as its factorization.

39457441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 39457441 is about 6281.5158202459. The cubic root of 39457441 is about 340.4418735768.

The spelling of 39457441 in words is "thirty-nine million, four hundred fifty-seven thousand, four hundred forty-one".