387430870 has 32 divisors (see below), whose sum is σ = 735215616. Its totient is φ = 146776800.

The previous prime is 387430861. The next prime is 387430873. The reversal of 387430870 is 78034783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387430873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1275 + ... + 27865.

It is an arithmetic number, because the mean of its divisors is an integer number (22975488).

Almost surely, 2^387430870 is an apocalyptic number.

387430870 is a deficient number, since it is larger than the sum of its proper divisors (347784746).

387430870 is a wasteful number, since it uses less digits than its factorization.

387430870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26676.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 387430870 is about 19683.2637029533. The cubic root of 387430870 is about 729.0065111695.

The spelling of 387430870 in words is "three hundred eighty-seven million, four hundred thirty thousand, eight hundred seventy".