387774842 has 16 divisors (see below), whose sum is σ = 715892352. Its totient is φ = 153405360.

The previous prime is 387774841. The next prime is 387774853. The reversal of 387774842 is 248477783.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (387774841) 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, 1065134 + ... + 1065497.

It is an arithmetic number, because the mean of its divisors is an integer number (44743272).

Almost surely, 2^387774842 is an apocalyptic number.

387774842 is a deficient number, since it is larger than the sum of its proper divisors (328117510).

387774842 is a wasteful number, since it uses less digits than its factorization.

387774842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130653.

The product of its digits is 2107392, while the sum is 50.

The square root of 387774842 is about 19691.9994413975. Note that the first 3 decimals coincide. The cubic root of 387774842 is about 729.2221915000. Note that the first 3 decimals are identical.

The spelling of 387774842 in words is "three hundred eighty-seven million, seven hundred seventy-four thousand, eight hundred forty-two".