38765918 has 4 divisors (see below), whose sum is σ = 58148880. Its totient is φ = 19382958.

The previous prime is 38765911. The next prime is 38765957. The reversal of 38765918 is 81956783.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81956783 = 127 ⋅645329.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38765911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9691478 + ... + 9691481.

It is an arithmetic number, because the mean of its divisors is an integer number (14537220).

Almost surely, 2^38765918 is an apocalyptic number.

38765918 is a deficient number, since it is larger than the sum of its proper divisors (19382962).

38765918 is a wasteful number, since it uses less digits than its factorization.

38765918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19382961.

The product of its digits is 362880, while the sum is 47.

The square root of 38765918 is about 6226.2282322446. The cubic root of 38765918 is about 338.4413023582.

The spelling of 38765918 in words is "thirty-eight million, seven hundred sixty-five thousand, nine hundred eighteen".