385404738 has 16 divisors (see below), whose sum is σ = 771022560. Its totient is φ = 128432736.

The previous prime is 385404737. The next prime is 385404763. The reversal of 385404738 is 837404583.

It is a self number, because there is not a number n which added to its sum of digits gives 385404738.

It is not an unprimeable number, because it can be changed into a prime (385404737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24006 + ... + 36702.

It is an arithmetic number, because the mean of its divisors is an integer number (48188910).

Almost surely, 2^385404738 is an apocalyptic number.

385404738 is an abundant number, since it is smaller than the sum of its proper divisors (385617822).

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

385404738 is a wasteful number, since it uses less digits than its factorization.

385404738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17761.

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 385404738 is about 19631.7278404118. The cubic root of 385404738 is about 727.7334704897.

The spelling of 385404738 in words is "three hundred eighty-five million, four hundred four thousand, seven hundred thirty-eight".