312000332240 has 160 divisors (see below), whose sum is σ = 788237049600. Its totient is φ = 114391130112.

The previous prime is 312000332219. The next prime is 312000332243. The reversal of 312000332240 is 42233000213.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312000332243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20401877 + ... + 20417163.

It is an arithmetic number, because the mean of its divisors is an integer number (4926481560).

Almost surely, 2^312000332240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312000332240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394118524800).

312000332240 is an abundant number, since it is smaller than the sum of its proper divisors (476236717360).

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

312000332240 is a wasteful number, since it uses less digits than its factorization.

312000332240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15709 (or 15703 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 312000332240 its reverse (42233000213), we get a palindrome (354233332453).

The spelling of 312000332240 in words is "three hundred twelve billion, three hundred thirty-two thousand, two hundred forty".