385722132 has 12 divisors (see below), whose sum is σ = 900018336. Its totient is φ = 128574040.

The previous prime is 385722109. The next prime is 385722179. The reversal of 385722132 is 231227583.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×385722132² = 297563126229250848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 385722093 and 385722102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16071744 + ... + 16071767.

It is an arithmetic number, because the mean of its divisors is an integer number (75001528).

Almost surely, 2^385722132 is an apocalyptic number.

It is an amenable number.

385722132 is an abundant number, since it is smaller than the sum of its proper divisors (514296204).

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

385722132 is a wasteful number, since it uses less digits than its factorization.

385722132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32143518 (or 32143516 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 385722132 is about 19639.8098768802. The cubic root of 385722132 is about 727.9331868201.

It can be divided in two parts, 3857221 and 32, that added together give a triangular number (3857253 = T₂₇₇₇).

The spelling of 385722132 in words is "three hundred eighty-five million, seven hundred twenty-two thousand, one hundred thirty-two".