385861970 has 16 divisors (see below), whose sum is σ = 747978840. Its totient is φ = 142472064.

The previous prime is 385861951. The next prime is 385861979. The reversal of 385861970 is 79168583.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 274200481 + 111661489 = 16559^2 + 10567^2 .

It is not an unprimeable number, because it can be changed into a prime (385861979) 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, 1483955 + ... + 1484214.

Almost surely, 2^385861970 is an apocalyptic number.

385861970 is a deficient number, since it is larger than the sum of its proper divisors (362116870).

385861970 is a wasteful number, since it uses less digits than its factorization.

385861970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968189.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 385861970 is about 19643.3696192888. The cubic root of 385861970 is about 728.0211434205.

The spelling of 385861970 in words is "three hundred eighty-five million, eight hundred sixty-one thousand, nine hundred seventy".