1408709145 has 16 divisors (see below), whose sum is σ = 2301891840. Its totient is φ = 735325824.

The previous prime is 1408709087. The next prime is 1408709209. The reversal of 1408709145 is 5419078041.

It is a de Polignac number, because none of the positive numbers 2^k-1408709145 is a prime.

It is a super-2 number, since 2×1408709145² = 3968922910413262050, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 998380 + ... + 999789.

It is an arithmetic number, because the mean of its divisors is an integer number (143868240).

Almost surely, 2^1408709145 is an apocalyptic number.

1408709145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1408709145 is a deficient number, since it is larger than the sum of its proper divisors (893182695).

1408709145 is a wasteful number, since it uses less digits than its factorization.

1408709145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998224.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1408709145 is about 37532.7742779561. The cubic root of 1408709145 is about 1121.0038685007.

The spelling of 1408709145 in words is "one billion, four hundred eight million, seven hundred nine thousand, one hundred forty-five".