1409144756 has 24 divisors (see below), whose sum is σ = 2631638016. Its totient is φ = 657901440.

The previous prime is 1409144729. The next prime is 1409144797. The reversal of 1409144756 is 6574419041.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72950 + ... + 90221.

It is an arithmetic number, because the mean of its divisors is an integer number (109651584).

Almost surely, 2^1409144756 is an apocalyptic number.

It is an amenable number.

1409144756 is a deficient number, since it is larger than the sum of its proper divisors (1222493260).

1409144756 is a wasteful number, since it uses less digits than its factorization.

1409144756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163319 (or 163317 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 1409144756 is about 37538.5769042994. The cubic root of 1409144756 is about 1121.1194048394.

The spelling of 1409144756 in words is "one billion, four hundred nine million, one hundred forty-four thousand, seven hundred fifty-six".