1406299999 has 4 divisors (see below), whose sum is σ = 1514476936. Its totient is φ = 1298123064.

The previous prime is 1406299943. The next prime is 1406300023. The reversal of 1406299999 is 9999926041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9999926041 = 7 ⋅1428560863.

It is a cyclic number.

It is not a de Polignac number, because 1406299999 - 2²³ = 1397911391 is a prime.

It is a Duffinian number.

1406299999 is a modest number, since divided by 99999 gives 14062 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406299919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54088449 + ... + 54088474.

It is an arithmetic number, because the mean of its divisors is an integer number (378619234).

Almost surely, 2^1406299999 is an apocalyptic number.

1406299999 is a deficient number, since it is larger than the sum of its proper divisors (108176937).

1406299999 is a wasteful number, since it uses less digits than its factorization.

1406299999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108176936.

The product of its (nonzero) digits is 2834352, while the sum is 58.

The square root of 1406299999 is about 37500.6666474077. Note that the first 4 decimals coincide. The cubic root of 1406299999 is about 1120.3644644527.

The spelling of 1406299999 in words is "one billion, four hundred six million, two hundred ninety-nine thousand, nine hundred ninety-nine".