1409289018 has 16 divisors (see below), whose sum is σ = 2984376960. Its totient is φ = 442129856.

The previous prime is 1409288999. The next prime is 1409289019. The reversal of 1409289018 is 8109829041.

It is not an unprimeable number, because it can be changed into a prime (1409289019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6908178 + ... + 6908381.

It is an arithmetic number, because the mean of its divisors is an integer number (186523560).

Almost surely, 2^1409289018 is an apocalyptic number.

1409289018 is an abundant number, since it is smaller than the sum of its proper divisors (1575087942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1409289018 is a wasteful number, since it uses less digits than its factorization.

1409289018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13816581.

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 1409289018 is about 37540.4983717585. The cubic root of 1409289018 is about 1121.1576619472.

The spelling of 1409289018 in words is "one billion, four hundred nine million, two hundred eighty-nine thousand, eighteen".