385221534 has 8 divisors (see below), whose sum is σ = 770443080. Its totient is φ = 128407176.

The previous prime is 385221493. The next prime is 385221559. The reversal of 385221534 is 435122583.

It is a sphenic number, since it is the product of 3 distinct primes.

385221534 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 385221495 and 385221504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32101789 + ... + 32101800.

It is an arithmetic number, because the mean of its divisors is an integer number (96305385).

Almost surely, 2^385221534 is an apocalyptic number.

385221534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

385221534 is a wasteful number, since it uses less digits than its factorization.

385221534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64203594.

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

The square root of 385221534 is about 19627.0612675459. The cubic root of 385221534 is about 727.6181416760.

The spelling of 385221534 in words is "three hundred eighty-five million, two hundred twenty-one thousand, five hundred thirty-four".