385699449 has 32 divisors (see below), whose sum is σ = 562435200. Its totient is φ = 234178560.

The previous prime is 385699439. The next prime is 385699453. The reversal of 385699449 is 944996583.

It is a happy number.

It is not a de Polignac number, because 385699449 - 2¹⁷ = 385568377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (385699439) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 583179 + ... + 583839.

It is an arithmetic number, because the mean of its divisors is an integer number (17576100).

Almost surely, 2^385699449 is an apocalyptic number.

It is an amenable number.

385699449 is a deficient number, since it is larger than the sum of its proper divisors (176735751).

385699449 is a wasteful number, since it uses less digits than its factorization.

385699449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065.

The product of its digits is 8398080, while the sum is 57.

The square root of 385699449 is about 19639.2323933498. The cubic root of 385699449 is about 727.9189174529.

The spelling of 385699449 in words is "three hundred eighty-five million, six hundred ninety-nine thousand, four hundred forty-nine".