1439218146 has 32 divisors (see below), whose sum is σ = 3023520768. Its totient is φ = 455835600.

The previous prime is 1439218103. The next prime is 1439218163. The reversal of 1439218146 is 6418129341.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13696 + ... + 55371.

It is an arithmetic number, because the mean of its divisors is an integer number (94485024).

Almost surely, 2^1439218146 is an apocalyptic number.

1439218146 is an abundant number, since it is smaller than the sum of its proper divisors (1584302622).

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

1439218146 is a wasteful number, since it uses less digits than its factorization.

1439218146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69246.

The product of its digits is 41472, while the sum is 39.

The square root of 1439218146 is about 37937.0286922948. The cubic root of 1439218146 is about 1129.0388218840.

The spelling of 1439218146 in words is "one billion, four hundred thirty-nine million, two hundred eighteen thousand, one hundred forty-six".