38940761 has 8 divisors (see below), whose sum is σ = 42346440. Its totient is φ = 35659008.

The previous prime is 38940739. The next prime is 38940773. The reversal of 38940761 is 16704983.

It can be written as a sum of positive squares in 4 ways, for example, as 28955161 + 9985600 = 5381^2 + 3160^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38940761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38940701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30326 + ... + 31583.

It is an arithmetic number, because the mean of its divisors is an integer number (5293305).

Almost surely, 2^38940761 is an apocalyptic number.

It is an amenable number.

38940761 is a deficient number, since it is larger than the sum of its proper divisors (3405679).

38940761 is a wasteful number, since it uses less digits than its factorization.

38940761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61963.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 38940761 is about 6240.2532801161. The cubic root of 38940761 is about 338.9493547497.

The spelling of 38940761 in words is "thirty-eight million, nine hundred forty thousand, seven hundred sixty-one".