387945436 has 6 divisors (see below), whose sum is σ = 678904520. Its totient is φ = 193972716.

The previous prime is 387945413. The next prime is 387945449. The reversal of 387945436 is 634549783.

It is a super-2 number, since 2×387945436² = 301003322626460192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 387945436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48493176 + ... + 48493183.

Almost surely, 2^387945436 is an apocalyptic number.

It is an amenable number.

387945436 is a deficient number, since it is larger than the sum of its proper divisors (290959084).

387945436 is a wasteful number, since it uses less digits than its factorization.

387945436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96986363 (or 96986361 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 49.

The square root of 387945436 is about 19696.3305211910. The cubic root of 387945436 is about 729.3291115293.

The spelling of 387945436 in words is "three hundred eighty-seven million, nine hundred forty-five thousand, four hundred thirty-six".