340255215 has 32 divisors (see below), whose sum is σ = 631203840. Its totient is φ = 173577888.

The previous prime is 340255213. The next prime is 340255229. The reversal of 340255215 is 512552043.

It is a happy number.

It is not a de Polignac number, because 340255215 - 2¹ = 340255213 is a prime.

It is a super-2 number, since 2×340255215² = 231547222669392450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340255213) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 51687 + ... + 57896.

It is an arithmetic number, because the mean of its divisors is an integer number (19725120).

Almost surely, 2^340255215 is an apocalyptic number.

340255215 is a deficient number, since it is larger than the sum of its proper divisors (290948625).

340255215 is a wasteful number, since it uses less digits than its factorization.

340255215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109620 (or 109614 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 340255215 is about 18446.0081047364. The cubic root of 340255215 is about 698.1277964322.

The spelling of 340255215 in words is "three hundred forty million, two hundred fifty-five thousand, two hundred fifteen".