38678390 has 16 divisors (see below), whose sum is σ = 71867520. Its totient is φ = 14972160.

The previous prime is 38678377. The next prime is 38678399. The reversal of 38678390 is 9387683.

It is a super-3 number, since 3×38678390³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38678399) 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, 62075 + ... + 62694.

It is an arithmetic number, because the mean of its divisors is an integer number (4491720).

Almost surely, 2^38678390 is an apocalyptic number.

38678390 is a deficient number, since it is larger than the sum of its proper divisors (33189130).

38678390 is a wasteful number, since it uses less digits than its factorization.

38678390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124807.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 38678390 is about 6219.1952855655. The cubic root of 38678390 is about 338.1863927642.

The spelling of 38678390 in words is "thirty-eight million, six hundred seventy-eight thousand, three hundred ninety".