1405400316 has 12 divisors (see below), whose sum is σ = 3279267432. Its totient is φ = 468466768.

The previous prime is 1405400281. The next prime is 1405400317. The reversal of 1405400316 is 6130045041.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405400317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58558335 + ... + 58558358.

It is an arithmetic number, because the mean of its divisors is an integer number (273272286).

Almost surely, 2^1405400316 is an apocalyptic number.

It is an amenable number.

1405400316 is an abundant number, since it is smaller than the sum of its proper divisors (1873867116).

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

1405400316 is a wasteful number, since it uses less digits than its factorization.

1405400316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117116700 (or 117116698 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1405400316 is about 37488.6691681633. The cubic root of 1405400316 is about 1120.1254950790.

Adding to 1405400316 its reverse (6130045041), we get a palindrome (7535445357).

The spelling of 1405400316 in words is "one billion, four hundred five million, four hundred thousand, three hundred sixteen".