38660840 has 16 divisors (see below), whose sum is σ = 86986980. Its totient is φ = 15464320.

The previous prime is 38660833. The next prime is 38660863. The reversal of 38660840 is 4806683.

It can be written as a sum of positive squares in 2 ways, for example, as 32239684 + 6421156 = 5678^2 + 2534^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 38660840.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483221 + ... + 483300.

Almost surely, 2^38660840 is an apocalyptic number.

It is an amenable number.

38660840 is an abundant number, since it is smaller than the sum of its proper divisors (48326140).

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

38660840 is a wasteful number, since it uses less digits than its factorization.

38660840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966532 (or 966528 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 38660840 is about 6217.7841712301. The cubic root of 38660840 is about 338.1352352652.

The spelling of 38660840 in words is "thirty-eight million, six hundred sixty thousand, eight hundred forty".