387255630 has 64 divisors (see below), whose sum is σ = 959247360. Its totient is φ = 100004736.

The previous prime is 387255629. The next prime is 387255637. The reversal of 387255630 is 36552783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387255637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124069 + ... + 127151.

It is an arithmetic number, because the mean of its divisors is an integer number (14988240).

Almost surely, 2^387255630 is an apocalyptic number.

387255630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 387255630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479623680).

387255630 is an abundant number, since it is smaller than the sum of its proper divisors (571991730).

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

387255630 is a wasteful number, since it uses less digits than its factorization.

387255630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 387255630 is about 19678.8117019296. The cubic root of 387255630 is about 728.8965815649.

The spelling of 387255630 in words is "three hundred eighty-seven million, two hundred fifty-five thousand, six hundred thirty".