38907834 has 16 divisors (see below), whose sum is σ = 88932288. Its totient is φ = 11116512.

The previous prime is 38907833. The next prime is 38907851. The reversal of 38907834 is 43870983.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 926377 = 38907834 / (3 + 8 + 9 + 0 + 7 + 8 + 3 + 4).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (38907833) 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, 463147 + ... + 463230.

It is an arithmetic number, because the mean of its divisors is an integer number (5558268).

Almost surely, 2^38907834 is an apocalyptic number.

38907834 is an abundant number, since it is smaller than the sum of its proper divisors (50024454).

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

38907834 is a wasteful number, since it uses less digits than its factorization.

38907834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926389.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 38907834 is about 6237.6144478478. The cubic root of 38907834 is about 338.8537930789.

The spelling of 38907834 in words is "thirty-eight million, nine hundred seven thousand, eight hundred thirty-four".