340140312252 has 36 divisors (see below), whose sum is σ = 925937517960. Its totient is φ = 104658557472.

The previous prime is 340140312251. The next prime is 340140312269. The reversal of 340140312252 is 252213041043.

340140312252 is a `hidden beast` number, since 3 + 4 + 0 + 1 + 403 + 1 + 2 + 252 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×340140312252² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340140312251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 363397302 + ... + 363398237.

It is an arithmetic number, because the mean of its divisors is an integer number (25720486610).

Almost surely, 2^340140312252 is an apocalyptic number.

It is an amenable number.

340140312252 is an abundant number, since it is smaller than the sum of its proper divisors (585797205708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340140312252 is a wasteful number, since it uses less digits than its factorization.

340140312252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726795562 (or 726795557 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 340140312252 its reverse (252213041043), we get a palindrome (592353353295).

The spelling of 340140312252 in words is "three hundred forty billion, one hundred forty million, three hundred twelve thousand, two hundred fifty-two".