387037540 has 24 divisors (see below), whose sum is σ = 832604472. Its totient is φ = 151038720.

The previous prime is 387037531. The next prime is 387037561. The reversal of 387037540 is 45730783.

It can be written as a sum of positive squares in 4 ways, for example, as 21233664 + 365803876 = 4608^2 + 19126^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 387037540.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235179 + ... + 236818.

It is an arithmetic number, because the mean of its divisors is an integer number (34691853).

Almost surely, 2^387037540 is an apocalyptic number.

It is an amenable number.

387037540 is an abundant number, since it is smaller than the sum of its proper divisors (445566932).

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

387037540 is a wasteful number, since it uses less digits than its factorization.

387037540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472047 (or 472045 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 387037540 is about 19673.2696824905. The cubic root of 387037540 is about 728.7597254473.

The spelling of 387037540 in words is "three hundred eighty-seven million, thirty-seven thousand, five hundred forty".