312441440 has 48 divisors (see below), whose sum is σ = 755325648. Its totient is φ = 122067456.

The previous prime is 312441439. The next prime is 312441449. The reversal of 312441440 is 44144213.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312441449) 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, 15827 + ... + 29586.

It is an arithmetic number, because the mean of its divisors is an integer number (15735951).

Almost surely, 2^312441440 is an apocalyptic number.

It is an amenable number.

312441440 is an abundant number, since it is smaller than the sum of its proper divisors (442884208).

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

312441440 is a wasteful number, since it uses less digits than its factorization.

312441440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45471 (or 45463 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 312441440 is about 17676.0131251366. The cubic root of 312441440 is about 678.5620131552.

Adding to 312441440 its reverse (44144213), we get a palindrome (356585653).

The spelling of 312441440 in words is "three hundred twelve million, four hundred forty-one thousand, four hundred forty".