340215253 has 16 divisors (see below), whose sum is σ = 401385600. Its totient is φ = 282297600.

The previous prime is 340215247. The next prime is 340215263. The reversal of 340215253 is 352512043.

It is a cyclic number.

It is not a de Polignac number, because 340215253 - 2¹³ = 340207061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340215223) 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, 33073 + ... + 42121.

It is an arithmetic number, because the mean of its divisors is an integer number (25086600).

Almost surely, 2^340215253 is an apocalyptic number.

It is an amenable number.

340215253 is a deficient number, since it is larger than the sum of its proper divisors (61170347).

340215253 is a wasteful number, since it uses less digits than its factorization.

340215253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9228.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 340215253 is about 18444.9248575319. The cubic root of 340215253 is about 698.1004643257.

Adding to 340215253 its reverse (352512043), we get a palindrome (692727296).

The spelling of 340215253 in words is "three hundred forty million, two hundred fifteen thousand, two hundred fifty-three".