385564730 has 16 divisors (see below), whose sum is σ = 696011400. Its totient is φ = 153782592.

The previous prime is 385564723. The next prime is 385564787. The reversal of 385564730 is 37465583.

It can be written as a sum of positive squares in 4 ways, for example, as 355435609 + 30129121 = 18853^2 + 5489^2 .

It is a super-2 number, since 2×385564730² = 297320322039945800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51749 + ... + 58728.

Almost surely, 2^385564730 is an apocalyptic number.

385564730 is a deficient number, since it is larger than the sum of its proper divisors (310446670).

385564730 is a wasteful number, since it uses less digits than its factorization.

385564730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110833.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 385564730 is about 19635.8022499719. The cubic root of 385564730 is about 727.8341572175.

The spelling of 385564730 in words is "three hundred eighty-five million, five hundred sixty-four thousand, seven hundred thirty".