38778475 has 12 divisors (see below), whose sum is σ = 49204936. Its totient is φ = 30300480.

The previous prime is 38778463. The next prime is 38778491. The reversal of 38778475 is 57487783.

It is not a de Polignac number, because 38778475 - 2¹³ = 38770283 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16962 + ... + 19111.

Almost surely, 2^38778475 is an apocalyptic number.

38778475 is a deficient number, since it is larger than the sum of its proper divisors (10426461).

38778475 is a wasteful number, since it uses less digits than its factorization.

38778475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36126 (or 36121 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 49.

The square root of 38778475 is about 6227.2365460130. The cubic root of 38778475 is about 338.4778408854.

The spelling of 38778475 in words is "thirty-eight million, seven hundred seventy-eight thousand, four hundred seventy-five".