38149855 has 8 divisors (see below), whose sum is σ = 45998064. Its totient is φ = 30374400.

The previous prime is 38149841. The next prime is 38149879. The reversal of 38149855 is 55894183.

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

It is not a de Polignac number, because 38149855 - 2⁵ = 38149823 is a prime.

It is a super-2 number, since 2×38149855² = 2910822873042050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17026 + ... + 19135.

It is an arithmetic number, because the mean of its divisors is an integer number (5749758).

Almost surely, 2^38149855 is an apocalyptic number.

38149855 is a deficient number, since it is larger than the sum of its proper divisors (7848209).

38149855 is a wasteful number, since it uses less digits than its factorization.

38149855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36377.

The product of its digits is 172800, while the sum is 43.

The square root of 38149855 is about 6176.5568887528. The cubic root of 38149855 is about 336.6388985801.

The spelling of 38149855 in words is "thirty-eight million, one hundred forty-nine thousand, eight hundred fifty-five".