38670555 has 48 divisors (see below), whose sum is σ = 78534144. Its totient is φ = 16067520.

The previous prime is 38670551. The next prime is 38670557. The reversal of 38670555 is 55507683.

It is not a de Polignac number, because 38670555 - 2² = 38670551 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (38670551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5694 + ... + 10476.

It is an arithmetic number, because the mean of its divisors is an integer number (1636128).

Almost surely, 2^38670555 is an apocalyptic number.

38670555 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38670555 is an abundant number, since it is smaller than the sum of its proper divisors (39863589).

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

38670555 is a wasteful number, since it uses less digits than its factorization.

38670555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4816 (or 4809 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 38670555 is about 6218.5653490174. The cubic root of 38670555 is about 338.1635559871.

It can be divided in two parts, 386705 and 55, that added together give a triangular number (386760 = T₈₇₉).

The spelling of 38670555 in words is "thirty-eight million, six hundred seventy thousand, five hundred fifty-five".