385803444 has 24 divisors (see below), whose sum is σ = 969455200. Its totient is φ = 118708704.

The previous prime is 385803437. The next prime is 385803461. The reversal of 385803444 is 444308583.

It is a happy number.

It is a super-2 number, since 2×385803444² = 297688594804522272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 1236394 + ... + 1236705.

Almost surely, 2^385803444 is an apocalyptic number.

It is an amenable number.

385803444 is an abundant number, since it is smaller than the sum of its proper divisors (583651756).

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

385803444 is a wasteful number, since it uses less digits than its factorization.

385803444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473119 (or 2473117 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

The square root of 385803444 is about 19641.8798489350. The cubic root of 385803444 is about 727.9843337811.

It can be divided in two parts, 38580 and 3444, that added together give a palindrome (42024).

The spelling of 385803444 in words is "three hundred eighty-five million, eight hundred three thousand, four hundred forty-four".