387807288 has 32 divisors (see below), whose sum is σ = 1057656960. Its totient is φ = 117517280.

The previous prime is 387807223. The next prime is 387807289. The reversal of 387807288 is 882708783.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 387807288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387807289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 734220 + ... + 734747.

It is an arithmetic number, because the mean of its divisors is an integer number (33051780).

Almost surely, 2^387807288 is an apocalyptic number.

It is an amenable number.

387807288 is an abundant number, since it is smaller than the sum of its proper divisors (669849672).

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

387807288 is a wasteful number, since it uses less digits than its factorization.

387807288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468987 (or 1468983 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 51.

The square root of 387807288 is about 19692.8232612797. The cubic root of 387807288 is about 729.2425294907.

The spelling of 387807288 in words is "three hundred eighty-seven million, eight hundred seven thousand, two hundred eighty-eight".