387537444 has 36 divisors (see below), whose sum is σ = 1119553344. Its totient is φ = 110724912.

The previous prime is 387537443. The next prime is 387537461. The reversal of 387537444 is 444735783.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 387537444.

It is not an unprimeable number, because it can be changed into a prime (387537443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 768672 + ... + 769175.

It is an arithmetic number, because the mean of its divisors is an integer number (31098704).

Almost surely, 2^387537444 is an apocalyptic number.

It is an amenable number.

387537444 is an abundant number, since it is smaller than the sum of its proper divisors (732015900).

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

387537444 is a wasteful number, since it uses less digits than its factorization.

387537444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537864 (or 1537859 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 45.

The square root of 387537444 is about 19685.9707406061. The cubic root of 387537444 is about 729.0733497749.

The spelling of 387537444 in words is "three hundred eighty-seven million, five hundred thirty-seven thousand, four hundred forty-four".