385421696 has 64 divisors (see below), whose sum is σ = 841181760. Its totient is φ = 174451200.

The previous prime is 385421693. The next prime is 385421713. The reversal of 385421696 is 696124583.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385421693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465635 + ... + 466461.

It is an arithmetic number, because the mean of its divisors is an integer number (13143465).

Almost surely, 2^385421696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385421696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420590880).

385421696 is an abundant number, since it is smaller than the sum of its proper divisors (455760064).

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

385421696 is a wasteful number, since it uses less digits than its factorization.

385421696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183 (or 1171 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 385421696 is about 19632.1597385514. The cubic root of 385421696 is about 727.7441438779.

The spelling of 385421696 in words is "three hundred eighty-five million, four hundred twenty-one thousand, six hundred ninety-six".