38720741 has 2 divisors, whose sum is σ = 38720742. Its totient is φ = 38720740.

The previous prime is 38720723. The next prime is 38720761. The reversal of 38720741 is 14702783.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22600516 + 16120225 = 4754^2 + 4015^2 .

It is a cyclic number.

It is not a de Polignac number, because 38720741 - 2⁶ = 38720677 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 38720698 and 38720707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38720761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19360370 + 19360371.

It is an arithmetic number, because the mean of its divisors is an integer number (19360371).

Almost surely, 2^38720741 is an apocalyptic number.

It is an amenable number.

38720741 is a deficient number, since it is larger than the sum of its proper divisors (1).

38720741 is an equidigital number, since it uses as much as digits as its factorization.

38720741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 38720741 is about 6222.5992157619. The cubic root of 38720741 is about 338.3097804199.

The spelling of 38720741 in words is "thirty-eight million, seven hundred twenty thousand, seven hundred forty-one".