385123730 has 32 divisors (see below), whose sum is σ = 761443200. Its totient is φ = 139594752.

The previous prime is 385123723. The next prime is 385123733. The reversal of 385123730 is 37321583.

It is a super-2 number, since 2×385123730² = 296640574818225800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (385123733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39695 + ... + 48434.

It is an arithmetic number, because the mean of its divisors is an integer number (23795100).

Almost surely, 2^385123730 is an apocalyptic number.

385123730 is a deficient number, since it is larger than the sum of its proper divisors (376319470).

385123730 is a wasteful number, since it uses less digits than its factorization.

385123730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88178.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 385123730 is about 19624.5695494194. The cubic root of 385123730 is about 727.5565580746.

The spelling of 385123730 in words is "three hundred eighty-five million, one hundred twenty-three thousand, seven hundred thirty".