385261340 has 24 divisors (see below), whose sum is σ = 809418960. Its totient is φ = 154034048.

The previous prime is 385261333. The next prime is 385261343. The reversal of 385261340 is 43162583.

It is a junction number, because it is equal to n+sod(n) for n = 385261297 and 385261306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385261343) 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, 77984 + ... + 82776.

It is an arithmetic number, because the mean of its divisors is an integer number (33725790).

Almost surely, 2^385261340 is an apocalyptic number.

It is an amenable number.

385261340 is an abundant number, since it is smaller than the sum of its proper divisors (424157620).

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

385261340 is a wasteful number, since it uses less digits than its factorization.

385261340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8821 (or 8819 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 385261340 is about 19628.0753004466. The cubic root of 385261340 is about 727.6432030737.

The spelling of 385261340 in words is "three hundred eighty-five million, two hundred sixty-one thousand, three hundred forty".