340781363 has 16 divisors (see below), whose sum is σ = 388690176. Its totient is φ = 296382240.

The previous prime is 340781351. The next prime is 340781387. The reversal of 340781363 is 363187043.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 340781363 - 2⁴ = 340781347 is a prime.

It is a super-2 number, since 2×340781363² = 232263874736275538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340781263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11528 + ... + 28538.

It is an arithmetic number, because the mean of its divisors is an integer number (24293136).

Almost surely, 2^340781363 is an apocalyptic number.

340781363 is a deficient number, since it is larger than the sum of its proper divisors (47908813).

340781363 is a wasteful number, since it uses less digits than its factorization.

340781363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17114.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 340781363 is about 18460.2644347257. The cubic root of 340781363 is about 698.4874572180.

The spelling of 340781363 in words is "three hundred forty million, seven hundred eighty-one thousand, three hundred sixty-three".