385427770 has 32 divisors (see below), whose sum is σ = 853872768. Its totient is φ = 121981248.

The previous prime is 385427759. The next prime is 385427789. The reversal of 385427770 is 77724583.

It is a super-3 number, since 3×385427770³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210864 + ... + 212683.

It is an arithmetic number, because the mean of its divisors is an integer number (26683524).

Almost surely, 2^385427770 is an apocalyptic number.

385427770 is an abundant number, since it is smaller than the sum of its proper divisors (468444998).

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

385427770 is a wasteful number, since it uses less digits than its factorization.

385427770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423574.

The product of its (nonzero) digits is 329280, while the sum is 43.

The square root of 385427770 is about 19632.3144330973. The cubic root of 385427770 is about 727.7479667856.

The spelling of 385427770 in words is "three hundred eighty-five million, four hundred twenty-seven thousand, seven hundred seventy".