38746978 has 16 divisors (see below), whose sum is σ = 61685280. Its totient is φ = 18190656.

The previous prime is 38746969. The next prime is 38746979. The reversal of 38746978 is 87964783.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (38746979) 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, 16693 + ... + 18871.

It is an arithmetic number, because the mean of its divisors is an integer number (3855330).

Almost surely, 2^38746978 is an apocalyptic number.

38746978 is a deficient number, since it is larger than the sum of its proper divisors (22938302).

38746978 is a wasteful number, since it uses less digits than its factorization.

38746978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721.

The product of its digits is 2032128, while the sum is 52.

The square root of 38746978 is about 6224.7070613805. The cubic root of 38746978 is about 338.3861755628.

The spelling of 38746978 in words is "thirty-eight million, seven hundred forty-six thousand, nine hundred seventy-eight".