385623424 has 16 divisors (see below), whose sum is σ = 768234420. Its totient is φ = 192811648.

The previous prime is 385623379. The next prime is 385623431. The reversal of 385623424 is 424326583.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-3 number, since 3×385623424³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1506214 + ... + 1506469.

Almost surely, 2^385623424 is an apocalyptic number.

It is an amenable number.

385623424 is a deficient number, since it is larger than the sum of its proper divisors (382610996).

385623424 is an equidigital number, since it uses as much as digits as its factorization.

385623424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012697 (or 3012685 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

The square root of 385623424 is about 19637.2967589737. The cubic root of 385623424 is about 727.8710877483.

The spelling of 385623424 in words is "three hundred eighty-five million, six hundred twenty-three thousand, four hundred twenty-four".