38817140 has 24 divisors (see below), whose sum is σ = 82108320. Its totient is φ = 15414048.

The previous prime is 38817127. The next prime is 38817173. The reversal of 38817140 is 4171883.

It is a junction number, because it is equal to n+sod(n) for n = 38817097 and 38817106.

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 7 ways as a sum of consecutive naturals, for example, 4202 + ... + 9761.

It is an arithmetic number, because the mean of its divisors is an integer number (3421180).

Almost surely, 2^38817140 is an apocalyptic number.

It is an amenable number.

38817140 is an abundant number, since it is smaller than the sum of its proper divisors (43291180).

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

38817140 is a wasteful number, since it uses less digits than its factorization.

38817140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14111 (or 14109 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 38817140 is about 6230.3402796316. The cubic root of 38817140 is about 338.5902993088.

The spelling of 38817140 in words is "thirty-eight million, eight hundred seventeen thousand, one hundred forty".