312242826 has 64 divisors (see below), whose sum is σ = 741830400. Its totient is φ = 85725696.

The previous prime is 312242807. The next prime is 312242831. The reversal of 312242826 is 628242213.

It is a junction number, because it is equal to n+sod(n) for n = 312242793 and 312242802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327166 + ... + 328118.

It is an arithmetic number, because the mean of its divisors is an integer number (11591100).

Almost surely, 2^312242826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312242826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370915200).

312242826 is an abundant number, since it is smaller than the sum of its proper divisors (429587574).

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

312242826 is a wasteful number, since it uses less digits than its factorization.

312242826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263.

The product of its digits is 9216, while the sum is 30.

The square root of 312242826 is about 17670.3940533311. The cubic root of 312242826 is about 678.4181990235.

The spelling of 312242826 in words is "three hundred twelve million, two hundred forty-two thousand, eight hundred twenty-six".