1439985150 has 108 divisors (see below), whose sum is σ = 4047819048. Its totient is φ = 366315840.

The previous prime is 1439985133. The next prime is 1439985181. The reversal of 1439985150 is 515899341.

1439985150 is a `hidden beast` number, since 1 + 43 + 9 + 98 + 515 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 1439985096 and 1439985105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 3860364 + ... + 3860736.

It is an arithmetic number, because the mean of its divisors is an integer number (37479806).

Almost surely, 2^1439985150 is an apocalyptic number.

1439985150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1439985150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2023909524).

1439985150 is an abundant number, since it is smaller than the sum of its proper divisors (2607833898).

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

1439985150 is a wasteful number, since it uses less digits than its factorization.

1439985150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 1439985150 is about 37947.1362555859. The cubic root of 1439985150 is about 1129.2393528703.

The spelling of 1439985150 in words is "one billion, four hundred thirty-nine million, nine hundred eighty-five thousand, one hundred fifty".