1408409279 has 2 divisors, whose sum is σ = 1408409280. Its totient is φ = 1408409278.

The previous prime is 1408409263. The next prime is 1408409293. The reversal of 1408409279 is 9729048041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1408409279 - 2⁴ = 1408409263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1408409579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704204639 + 704204640.

It is an arithmetic number, because the mean of its divisors is an integer number (704204640).

Almost surely, 2^1408409279 is an apocalyptic number.

1408409279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1408409279 is an equidigital number, since it uses as much as digits as its factorization.

1408409279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 1408409279 is about 37528.7793433253. The cubic root of 1408409279 is about 1120.9243217275.

The spelling of 1408409279 in words is "one billion, four hundred eight million, four hundred nine thousand, two hundred seventy-nine".