38694540 has 24 divisors (see below), whose sum is σ = 108344880. Its totient is φ = 10318528.

The previous prime is 38694511. The next prime is 38694553. The reversal of 38694540 is 4549683.

38694540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322395 + ... + 322514.

It is an arithmetic number, because the mean of its divisors is an integer number (4514370).

Almost surely, 2^38694540 is an apocalyptic number.

38694540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38694540 is an abundant number, since it is smaller than the sum of its proper divisors (69650340).

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

38694540 is a wasteful number, since it uses less digits than its factorization.

38694540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644921 (or 644919 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 38694540 is about 6220.4935495505. The cubic root of 38694540 is about 338.2334556526.

The spelling of 38694540 in words is "thirty-eight million, six hundred ninety-four thousand, five hundred forty".