1408313643 has 32 divisors (see below), whose sum is σ = 2182401792. Its totient is φ = 798336000.

The previous prime is 1408313629. The next prime is 1408313651. The reversal of 1408313643 is 3463138041.

1408313643 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1408313643 - 2¹⁴ = 1408297259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1408313603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83743 + ... + 99143.

It is an arithmetic number, because the mean of its divisors is an integer number (68200056).

Almost surely, 2^1408313643 is an apocalyptic number.

1408313643 is a deficient number, since it is larger than the sum of its proper divisors (774088149).

1408313643 is a wasteful number, since it uses less digits than its factorization.

1408313643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15595.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 1408313643 is about 37527.5051528875. The cubic root of 1408313643 is about 1120.8989495703.

The spelling of 1408313643 in words is "one billion, four hundred eight million, three hundred thirteen thousand, six hundred forty-three".