38779474 has 4 divisors (see below), whose sum is σ = 58169214. Its totient is φ = 19389736.

The previous prime is 38779463. The next prime is 38779483. The reversal of 38779474 is 47497783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47497783 = 23 ⋅2065121.

It can be written as a sum of positive squares in only one way, i.e., 27510025 + 11269449 = 5245^2 + 3357^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9694867 + ... + 9694870.

Almost surely, 2^38779474 is an apocalyptic number.

38779474 is a deficient number, since it is larger than the sum of its proper divisors (19389740).

38779474 is a wasteful number, since it uses less digits than its factorization.

38779474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19389739.

The product of its digits is 1185408, while the sum is 49.

The square root of 38779474 is about 6227.3167576413. The cubic root of 38779474 is about 338.4807474503.

The spelling of 38779474 in words is "thirty-eight million, seven hundred seventy-nine thousand, four hundred seventy-four".