385116040 has 16 divisors (see below), whose sum is σ = 866511180. Its totient is φ = 154046400.

The previous prime is 385116037. The next prime is 385116047. The reversal of 385116040 is 40611583.

It can be written as a sum of positive squares in 2 ways, for example, as 384708996 + 407044 = 19614^2 + 638^2 .

It is not an unprimeable number, because it can be changed into a prime (385116047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4813911 + ... + 4813990.

Almost surely, 2^385116040 is an apocalyptic number.

It is an amenable number.

385116040 is an abundant number, since it is smaller than the sum of its proper divisors (481395140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385116040 is a wasteful number, since it uses less digits than its factorization.

385116040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9627912 (or 9627908 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 385116040 is about 19624.3736205770. The cubic root of 385116040 is about 727.5517155208.

It can be divided in two parts, 38511 and 6040, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 385116040 in words is "three hundred eighty-five million, one hundred sixteen thousand, forty".