39487040 has 28 divisors (see below), whose sum is σ = 94029276. Its totient is φ = 15794688.

The previous prime is 39487037. The next prime is 39487043. The reversal of 39487040 is 4078493.

It is an interprime number because it is at equal distance from previous prime (39487037) and next prime (39487043).

It can be written as a sum of positive squares in 2 ways, for example, as 30294016 + 9193024 = 5504^2 + 3032^2 .

It is not an unprimeable number, because it can be changed into a prime (39487043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61379 + ... + 62018.

Almost surely, 2^39487040 is an apocalyptic number.

It is an amenable number.

39487040 is an abundant number, since it is smaller than the sum of its proper divisors (54542236).

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

39487040 is a wasteful number, since it uses less digits than its factorization.

39487040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123414 (or 123404 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 39487040 is about 6283.8714181625. The cubic root of 39487040 is about 340.5269797918.

The spelling of 39487040 in words is "thirty-nine million, four hundred eighty-seven thousand, forty".