387450472 has 8 divisors (see below), whose sum is σ = 726469650. Its totient is φ = 193725232.

The previous prime is 387450461. The next prime is 387450473. The reversal of 387450472 is 274054783.

It can be written as a sum of positive squares in only one way, i.e., 310957956 + 76492516 = 17634^2 + 8746^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (387450473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24215647 + ... + 24215662.

Almost surely, 2^387450472 is an apocalyptic number.

It is an amenable number.

387450472 is a deficient number, since it is larger than the sum of its proper divisors (339019178).

387450472 is a wasteful number, since it uses less digits than its factorization.

387450472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48431315 (or 48431311 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 40.

The square root of 387450472 is about 19683.7616323710. The cubic root of 387450472 is about 729.0188056163.

The spelling of 387450472 in words is "three hundred eighty-seven million, four hundred fifty thousand, four hundred seventy-two".