387552450 has 48 divisors (see below), whose sum is σ = 968196960. Its totient is φ = 102587520.

The previous prime is 387552413. The next prime is 387552457. The reversal of 387552450 is 54255783.

It is a junction number, because it is equal to n+sod(n) for n = 387552399 and 387552408.

It is not an unprimeable number, because it can be changed into a prime (387552457) 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 23 ways as a sum of consecutive naturals, for example, 11121 + ... + 29979.

It is an arithmetic number, because the mean of its divisors is an integer number (20170770).

Almost surely, 2^387552450 is an apocalyptic number.

387552450 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 387552450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484098480).

387552450 is an abundant number, since it is smaller than the sum of its proper divisors (580644510).

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

387552450 is a wasteful number, since it uses less digits than its factorization.

387552450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19011 (or 19006 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 39.

The square root of 387552450 is about 19686.3518712838. The cubic root of 387552450 is about 729.0827599051.

The spelling of 387552450 in words is "three hundred eighty-seven million, five hundred fifty-two thousand, four hundred fifty".