385605402 has 160 divisors (see below), whose sum is σ = 1016426880. Its totient is φ = 96808320.

The previous prime is 385605397. The next prime is 385605403. The reversal of 385605402 is 204506583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385605403) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5431027 + ... + 5431097.

It is an arithmetic number, because the mean of its divisors is an integer number (6352668).

Almost surely, 2^385605402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385605402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508213440).

385605402 is an abundant number, since it is smaller than the sum of its proper divisors (630821478).

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

385605402 is a wasteful number, since it uses less digits than its factorization.

385605402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 385605402 is about 19636.8378818994. The cubic root of 385605402 is about 727.8597486229.

The spelling of 385605402 in words is "three hundred eighty-five million, six hundred five thousand, four hundred two".