385622540 has 24 divisors (see below), whose sum is σ = 810311040. Its totient is φ = 154153088.

The previous prime is 385622533. The next prime is 385622569. The reversal of 385622540 is 45226583.

It is a self number, because there is not a number n which added to its sum of digits gives 385622540.

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 in 7 ways as a sum of consecutive naturals, for example, 33221 + ... + 43299.

It is an arithmetic number, because the mean of its divisors is an integer number (33762960).

Almost surely, 2^385622540 is an apocalyptic number.

It is an amenable number.

385622540 is an abundant number, since it is smaller than the sum of its proper divisors (424688500).

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

385622540 is a wasteful number, since it uses less digits than its factorization.

385622540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12001 (or 11999 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 385622540 is about 19637.2742507712. The cubic root of 385622540 is about 727.8705315593.

The spelling of 385622540 in words is "three hundred eighty-five million, six hundred twenty-two thousand, five hundred forty".