387204280 has 32 divisors (see below), whose sum is σ = 882244800. Its totient is φ = 152919936.

The previous prime is 387204277. The next prime is 387204281. The reversal of 387204280 is 82402783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387204281) 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, 58107 + ... + 64426.

It is an arithmetic number, because the mean of its divisors is an integer number (27570150).

Almost surely, 2^387204280 is an apocalyptic number.

It is an amenable number.

387204280 is an abundant number, since it is smaller than the sum of its proper divisors (495040520).

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

387204280 is a wasteful number, since it uses less digits than its factorization.

387204280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122623 (or 122619 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 387204280 is about 19677.5069559129. The cubic root of 387204280 is about 728.8643629725.

The spelling of 387204280 in words is "three hundred eighty-seven million, two hundred four thousand, two hundred eighty".