340886385 has 72 divisors (see below), whose sum is σ = 709652736. Its totient is φ = 150776640.

The previous prime is 340886383. The next prime is 340886389. The reversal of 340886385 is 583688043.

340886385 is a `hidden beast` number, since 3 + 4 + 0 + 8 + 8 + 638 + 5 = 666.

It is not a de Polignac number, because 340886385 - 2¹ = 340886383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 340886385.

It is not an unprimeable number, because it can be changed into a prime (340886383) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 65862 + ... + 70848.

It is an arithmetic number, because the mean of its divisors is an integer number (9856288).

Almost surely, 2^340886385 is an apocalyptic number.

340886385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

340886385 is an abundant number, since it is smaller than the sum of its proper divisors (368766351).

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

340886385 is a wasteful number, since it uses less digits than its factorization.

340886385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5043 (or 5033 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 340886385 is about 18463.1087577363. The cubic root of 340886385 is about 698.5592031362.

The spelling of 340886385 in words is "three hundred forty million, eight hundred eighty-six thousand, three hundred eighty-five".