38772478 has 16 divisors (see below), whose sum is σ = 63704880. Its totient is φ = 17616256.

The previous prime is 38772473. The next prime is 38772479. The reversal of 38772478 is 87427783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38772473) 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, 18676 + ... + 20647.

It is an arithmetic number, because the mean of its divisors is an integer number (3981555).

Almost surely, 2^38772478 is an apocalyptic number.

38772478 is a deficient number, since it is larger than the sum of its proper divisors (24932402).

38772478 is a wasteful number, since it uses less digits than its factorization.

38772478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39371.

The product of its digits is 526848, while the sum is 46.

The square root of 38772478 is about 6226.7550136488. The cubic root of 38772478 is about 338.4603917184.

The spelling of 38772478 in words is "thirty-eight million, seven hundred seventy-two thousand, four hundred seventy-eight".