387471744 has 96 divisors (see below), whose sum is σ = 1216392840. Its totient is φ = 117411840.

The previous prime is 387471727. The next prime is 387471781. The reversal of 387471744 is 447174783.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 387471744.

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 11 ways as a sum of consecutive naturals, for example, 2617 + ... + 27960.

Almost surely, 2^387471744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 387471744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608196420).

387471744 is an abundant number, since it is smaller than the sum of its proper divisors (828921096).

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

387471744 is a wasteful number, since it uses less digits than its factorization.

387471744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30608 (or 30593 counting only the distinct ones).

The product of its digits is 526848, while the sum is 45.

The square root of 387471744 is about 19684.3019688279. The cubic root of 387471744 is about 729.0321470241.

The spelling of 387471744 in words is "three hundred eighty-seven million, four hundred seventy-one thousand, seven hundred forty-four".