385941509442 has 12 divisors (see below), whose sum is σ = 836206603830. Its totient is φ = 128647169808.

The previous prime is 385941509423. The next prime is 385941509453. The reversal of 385941509442 is 244905149583.

It is a happy number.

385941509442 is a `hidden beast` number, since 3 + 8 + 5 + 94 + 1 + 509 + 4 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 384624472761 + 1317036681 = 620181^2 + 36291^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10720597467 + ... + 10720597502.

Almost surely, 2^385941509442 is an apocalyptic number.

385941509442 is an abundant number, since it is smaller than the sum of its proper divisors (450265094388).

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

385941509442 is a wasteful number, since it uses less digits than its factorization.

385941509442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21441194977 (or 21441194974 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 385941509442 in words is "three hundred eighty-five billion, nine hundred forty-one million, five hundred nine thousand, four hundred forty-two".