387142904 has 32 divisors (see below), whose sum is σ = 770964480. Its totient is φ = 181622784.

The previous prime is 387142867. The next prime is 387142919. The reversal of 387142904 is 409241783.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41609 + ... + 50055.

It is an arithmetic number, because the mean of its divisors is an integer number (24092640).

Almost surely, 2^387142904 is an apocalyptic number.

387142904 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

387142904 is a deficient number, since it is larger than the sum of its proper divisors (383821576).

387142904 is a wasteful number, since it uses less digits than its factorization.

387142904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8807 (or 8803 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 387142904 is about 19675.9473469513. The cubic root of 387142904 is about 728.8258500175.

The spelling of 387142904 in words is "three hundred eighty-seven million, one hundred forty-two thousand, nine hundred four".