38418987 has 8 divisors (see below), whose sum is σ = 52609936. Its totient is φ = 24920352.

The previous prime is 38418977. The next prime is 38419019. The reversal of 38418987 is 78981483.

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

It is not a de Polignac number, because 38418987 - 2⁶ = 38418923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38418917) 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, 172948 + ... + 173169.

It is an arithmetic number, because the mean of its divisors is an integer number (6576242).

Almost surely, 2^38418987 is an apocalyptic number.

38418987 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

38418987 is a deficient number, since it is larger than the sum of its proper divisors (14190949).

38418987 is a wasteful number, since it uses less digits than its factorization.

38418987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346157.

The product of its digits is 387072, while the sum is 48.

The square root of 38418987 is about 6198.3051715771. The cubic root of 38418987 is about 337.4286620141.

The spelling of 38418987 in words is "thirty-eight million, four hundred eighteen thousand, nine hundred eighty-seven".