340235553 has 16 divisors (see below), whose sum is σ = 525558656. Its totient is φ = 191756160.

The previous prime is 340235549. The next prime is 340235557. The reversal of 340235553 is 355532043.

It is an interprime number because it is at equal distance from previous prime (340235549) and next prime (340235557).

It is not a de Polignac number, because 340235553 - 2² = 340235549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340235553.

It is not an unprimeable number, because it can be changed into a prime (340235557) 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, 109438 + ... + 112503.

It is an arithmetic number, because the mean of its divisors is an integer number (32847416).

Almost surely, 2^340235553 is an apocalyptic number.

It is an amenable number.

340235553 is a deficient number, since it is larger than the sum of its proper divisors (185323103).

340235553 is a wasteful number, since it uses less digits than its factorization.

340235553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222024.

The product of its (nonzero) digits is 27000, while the sum is 30.

The square root of 340235553 is about 18445.4751361953. The cubic root of 340235553 is about 698.1143488272.

Adding to 340235553 its reverse (355532043), we get a palindrome (695767596).

The spelling of 340235553 in words is "three hundred forty million, two hundred thirty-five thousand, five hundred fifty-three".