312000401401440 has 768 divisors, whose sum is σ = 1106095458859776. Its totient is φ = 73564736716800.

The previous prime is 312000401401439. The next prime is 312000401401519. The reversal of 312000401401440 is 44104104000213.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 312000401401440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1200605920 + ... + 1200865760.

It is an arithmetic number, because the mean of its divisors is an integer number (1440228462057).

Almost surely, 2^{312000401401440} is an apocalyptic number.

312000401401440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312000401401440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553047729429888).

312000401401440 is an abundant number, since it is smaller than the sum of its proper divisors (794095057458336).

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

312000401401440 is a wasteful number, since it uses less digits than its factorization.

312000401401440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260051 (or 260043 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 312000401401440 its reverse (44104104000213), we get a palindrome (356104505401653).

The spelling of 312000401401440 in words is "three hundred twelve trillion, four hundred one million, four hundred one thousand, four hundred forty".