340400252 has 12 divisors (see below), whose sum is σ = 605466456. Its totient is φ = 167409840.

The previous prime is 340400227. The next prime is 340400261. The reversal of 340400252 is 252004043.

340400252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697298 + ... + 697785.

It is an arithmetic number, because the mean of its divisors is an integer number (50455538).

Almost surely, 2^340400252 is an apocalyptic number.

It is an amenable number.

340400252 is a deficient number, since it is larger than the sum of its proper divisors (265066204).

340400252 is a wasteful number, since it uses less digits than its factorization.

340400252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395148 (or 1395146 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 340400252 is about 18449.9390784902. The cubic root of 340400252 is about 698.2269768643.

Adding to 340400252 its reverse (252004043), we get a palindrome (592404295).

The spelling of 340400252 in words is "three hundred forty million, four hundred thousand, two hundred fifty-two".