1406749609 has 16 divisors (see below), whose sum is σ = 1517152896. Its totient is φ = 1299513600.

The previous prime is 1406749579. The next prime is 1406749633. The reversal of 1406749609 is 9069476041.

It is a cyclic number.

It is not a de Polignac number, because 1406749609 - 2⁵ = 1406749577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1406749649) by changing a digit.

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, 607564 + ... + 609874.

It is an arithmetic number, because the mean of its divisors is an integer number (94822056).

Almost surely, 2^1406749609 is an apocalyptic number.

It is an amenable number.

1406749609 is a deficient number, since it is larger than the sum of its proper divisors (110403287).

1406749609 is a wasteful number, since it uses less digits than its factorization.

1406749609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 1406749609 is about 37506.6608617723. The cubic root of 1406749609 is about 1120.4838494569.

The spelling of 1406749609 in words is "one billion, four hundred six million, seven hundred forty-nine thousand, six hundred nine".