38461509 has 12 divisors (see below), whose sum is σ = 55628352. Its totient is φ = 25607400.

The previous prime is 38461499. The next prime is 38461513. The reversal of 38461509 is 90516483.

38461509 is a `hidden beast` number, since 38 + 4 + 615 + 0 + 9 = 666.

It is not a de Polignac number, because 38461509 - 2⁸ = 38461253 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38461009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5854 + ... + 10544.

It is an arithmetic number, because the mean of its divisors is an integer number (4635696).

Almost surely, 2^38461509 is an apocalyptic number.

It is an amenable number.

38461509 is a deficient number, since it is larger than the sum of its proper divisors (17166843).

38461509 is a wasteful number, since it uses less digits than its factorization.

38461509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5608 (or 5605 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 38461509 is about 6201.7343541948. The cubic root of 38461509 is about 337.5531044010.

The spelling of 38461509 in words is "thirty-eight million, four hundred sixty-one thousand, five hundred nine".