387441400 has 24 divisors (see below), whose sum is σ = 900801720. Its totient is φ = 154976480.

The previous prime is 387441367. The next prime is 387441403. The reversal of 387441400 is 4144783.

It is a super-2 number, since 2×387441400² = 300221676867920000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387441403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 968404 + ... + 968803.

It is an arithmetic number, because the mean of its divisors is an integer number (37533405).

Almost surely, 2^387441400 is an apocalyptic number.

It is an amenable number.

387441400 is an abundant number, since it is smaller than the sum of its proper divisors (513360320).

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

387441400 is a wasteful number, since it uses less digits than its factorization.

387441400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937223 (or 1937214 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 387441400 is about 19683.5311872641. The cubic root of 387441400 is about 729.0131156759.

The spelling of 387441400 in words is "three hundred eighty-seven million, four hundred forty-one thousand, four hundred".