387481212 has 48 divisors (see below), whose sum is σ = 1057459200. Its totient is φ = 122361840.

The previous prime is 387481189. The next prime is 387481219. The reversal of 387481212 is 212184783.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387481219) 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 15 ways as a sum of consecutive naturals, for example, 92364 + ... + 96467.

It is an arithmetic number, because the mean of its divisors is an integer number (22030400).

Almost surely, 2^387481212 is an apocalyptic number.

It is an amenable number.

387481212 is an abundant number, since it is smaller than the sum of its proper divisors (669977988).

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

387481212 is a wasteful number, since it uses less digits than its factorization.

387481212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188863 (or 188855 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 387481212 is about 19684.5424635677. The cubic root of 387481212 is about 729.0380850228.

The spelling of 387481212 in words is "three hundred eighty-seven million, four hundred eighty-one thousand, two hundred twelve".