38384978 has 8 divisors (see below), whose sum is σ = 60607920. Its totient is φ = 18182340.

The previous prime is 38384971. The next prime is 38384981. The reversal of 38384978 is 87948383.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (38384971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505028 + ... + 505103.

It is an arithmetic number, because the mean of its divisors is an integer number (7575990).

Almost surely, 2^38384978 is an apocalyptic number.

38384978 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

38384978 is a deficient number, since it is larger than the sum of its proper divisors (22222942).

38384978 is a wasteful number, since it uses less digits than its factorization.

38384978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010152.

The product of its digits is 1161216, while the sum is 50.

The square root of 38384978 is about 6195.5611529546. The cubic root of 38384978 is about 337.3290671692.

The spelling of 38384978 in words is "thirty-eight million, three hundred eighty-four thousand, nine hundred seventy-eight".