385155546 has 16 divisors (see below), whose sum is σ = 781161408. Its totient is φ = 126576800.

The previous prime is 385155509. The next prime is 385155557. The reversal of 385155546 is 645551583.

It is a happy number.

It is a super-2 number, since 2×385155546² = 296689589229116232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 385155498 and 385155507.

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, 451635 + ... + 452486.

It is an arithmetic number, because the mean of its divisors is an integer number (48822588).

Almost surely, 2^385155546 is an apocalyptic number.

385155546 is an abundant number, since it is smaller than the sum of its proper divisors (396005862).

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

385155546 is a wasteful number, since it uses less digits than its factorization.

385155546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904197.

The product of its digits is 360000, while the sum is 42.

The square root of 385155546 is about 19625.3801491844. The cubic root of 385155546 is about 727.5765925901.

The spelling of 385155546 in words is "three hundred eighty-five million, one hundred fifty-five thousand, five hundred forty-six".