38308540 has 12 divisors (see below), whose sum is σ = 80447976. Its totient is φ = 15323408.

The previous prime is 38308519. The next prime is 38308553. The reversal of 38308540 is 4580383.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957694 + ... + 957733.

It is an arithmetic number, because the mean of its divisors is an integer number (6703998).

Almost surely, 2^38308540 is an apocalyptic number.

It is an amenable number.

38308540 is an abundant number, since it is smaller than the sum of its proper divisors (42139436).

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

38308540 is a wasteful number, since it uses less digits than its factorization.

38308540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915436 (or 1915434 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 38308540 is about 6189.3893075165. The cubic root of 38308540 is about 337.1050047447.

The spelling of 38308540 in words is "thirty-eight million, three hundred eight thousand, five hundred forty".