38413978 has 8 divisors (see below), whose sum is σ = 58041972. Its totient is φ = 19066656.

The previous prime is 38413967. The next prime is 38413997. The reversal of 38413978 is 87931483.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36517849 + 1896129 = 6043^2 + 1377^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 69825 + ... + 70372.

Almost surely, 2^38413978 is an apocalyptic number.

38413978 is a deficient number, since it is larger than the sum of its proper divisors (19627994).

38413978 is a wasteful number, since it uses less digits than its factorization.

38413978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140336.

The product of its digits is 145152, while the sum is 43.

The square root of 38413978 is about 6197.9010963390. The cubic root of 38413978 is about 337.4139969248.

The spelling of 38413978 in words is "thirty-eight million, four hundred thirteen thousand, nine hundred seventy-eight".