387388466 has 4 divisors (see below), whose sum is σ = 581082702. Its totient is φ = 193694232.

The previous prime is 387388457. The next prime is 387388489. The reversal of 387388466 is 664883783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 664883783 = 29 ⋅22927027.

It can be written as a sum of positive squares in only one way, i.e., 288286441 + 99102025 = 16979^2 + 9955^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96847115 + ... + 96847118.

Almost surely, 2^387388466 is an apocalyptic number.

387388466 is a deficient number, since it is larger than the sum of its proper divisors (193694236).

387388466 is a wasteful number, since it uses less digits than its factorization.

387388466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193694235.

The product of its digits is 4644864, while the sum is 53.

The square root of 387388466 is about 19682.1865147143. The cubic root of 387388466 is about 728.9799138052.

The spelling of 387388466 in words is "three hundred eighty-seven million, three hundred eighty-eight thousand, four hundred sixty-six".