1409442549 has 8 divisors (see below), whose sum is σ = 1880480832. Its totient is φ = 939016320.

The previous prime is 1409442509. The next prime is 1409442557. The reversal of 1409442549 is 9452449041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1409442549 - 2⁹ = 1409442037 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1409442549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1409442509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147612 + ... + 156869.

It is an arithmetic number, because the mean of its divisors is an integer number (235060104).

Almost surely, 2^1409442549 is an apocalyptic number.

It is an amenable number.

1409442549 is a deficient number, since it is larger than the sum of its proper divisors (471038283).

1409442549 is a wasteful number, since it uses less digits than its factorization.

1409442549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306027.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 1409442549 is about 37542.5431876957. The cubic root of 1409442549 is about 1121.1983742507.

The spelling of 1409442549 in words is "one billion, four hundred nine million, four hundred forty-two thousand, five hundred forty-nine".