387430946 has 24 divisors (see below), whose sum is σ = 691756560. Its totient is φ = 162178632.

The previous prime is 387430937. The next prime is 387430999. The reversal of 387430946 is 649034783.

It is a happy number.

It is a super-3 number, since 3×387430946³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 387430897 and 387430906.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41756 + ... + 50183.

It is an arithmetic number, because the mean of its divisors is an integer number (28823190).

Almost surely, 2^387430946 is an apocalyptic number.

387430946 is a deficient number, since it is larger than the sum of its proper divisors (304325614).

387430946 is a wasteful number, since it uses less digits than its factorization.

387430946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91998 (or 91991 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 387430946 is about 19683.2656335274. The cubic root of 387430946 is about 729.0065588378.

The spelling of 387430946 in words is "three hundred eighty-seven million, four hundred thirty thousand, nine hundred forty-six".