312234340 has 24 divisors (see below), whose sum is σ = 715300992. Its totient is φ = 113539680.

The previous prime is 312234337. The next prime is 312234347. The reversal of 312234340 is 43432213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (312234347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709404 + ... + 709843.

It is an arithmetic number, because the mean of its divisors is an integer number (29804208).

Almost surely, 2^312234340 is an apocalyptic number.

It is an amenable number.

312234340 is an abundant number, since it is smaller than the sum of its proper divisors (403066652).

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

312234340 is a wasteful number, since it uses less digits than its factorization.

312234340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419267 (or 1419265 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 312234340 is about 17670.1539325497. The cubic root of 312234340 is about 678.4120530494.

Adding to 312234340 its reverse (43432213), we get a palindrome (355666553).

The spelling of 312234340 in words is "three hundred twelve million, two hundred thirty-four thousand, three hundred forty".