314121440 has 24 divisors (see below), whose sum is σ = 742112280. Its totient is φ = 125648512.

The previous prime is 314121421. The next prime is 314121449. The reversal of 314121440 is 44121413.

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 (314121449) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 981470 + ... + 981789.

It is an arithmetic number, because the mean of its divisors is an integer number (30921345).

Almost surely, 2^314121440 is an apocalyptic number.

It is an amenable number.

314121440 is an abundant number, since it is smaller than the sum of its proper divisors (427990840).

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

314121440 is a wasteful number, since it uses less digits than its factorization.

314121440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963274 (or 1963266 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 314121440 is about 17723.4714432585. The cubic root of 314121440 is about 679.7760508208.

Adding to 314121440 its reverse (44121413), we get a palindrome (358242853).

The spelling of 314121440 in words is "three hundred fourteen million, one hundred twenty-one thousand, four hundred forty".