38716240 has 20 divisors (see below), whose sum is σ = 90015444. Its totient is φ = 15486464.

The previous prime is 38716231. The next prime is 38716253. The reversal of 38716240 is 4261783.

It can be written as a sum of positive squares in 2 ways, for example, as 25928464 + 12787776 = 5092^2 + 3576^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 241897 + ... + 242056.

Almost surely, 2^38716240 is an apocalyptic number.

It is an amenable number.

38716240 is an abundant number, since it is smaller than the sum of its proper divisors (51299204).

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

38716240 is a wasteful number, since it uses less digits than its factorization.

38716240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483966 (or 483960 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 38716240 is about 6222.2375396637. The cubic root of 38716240 is about 338.2966712413.

The spelling of 38716240 in words is "thirty-eight million, seven hundred sixteen thousand, two hundred forty".