38918436 has 24 divisors (see below), whose sum is σ = 91027104. Its totient is φ = 12941760.

The previous prime is 38918419. The next prime is 38918459. The reversal of 38918436 is 63481983.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1656 + ... + 8976.

It is an arithmetic number, because the mean of its divisors is an integer number (3792796).

Almost surely, 2^38918436 is an apocalyptic number.

It is an amenable number.

38918436 is an abundant number, since it is smaller than the sum of its proper divisors (52108668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38918436 is a wasteful number, since it uses less digits than its factorization.

38918436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7771 (or 7769 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 38918436 is about 6238.4642340884. The cubic root of 38918436 is about 338.8845683863.

The spelling of 38918436 in words is "thirty-eight million, nine hundred eighteen thousand, four hundred thirty-six".