1439769850 has 12 divisors (see below), whose sum is σ = 2677972014. Its totient is φ = 575907920.

The previous prime is 1439769839. The next prime is 1439769883. The reversal of 1439769850 is 589679341.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1018822561 + 420947289 = 31919^2 + 20517^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14397649 + ... + 14397748.

Almost surely, 2^1439769850 is an apocalyptic number.

1439769850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1439769850 is a deficient number, since it is larger than the sum of its proper divisors (1238202164).

1439769850 is a wasteful number, since it uses less digits than its factorization.

1439769850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28795409 (or 28795404 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 1439769850 is about 37944.2993083283. The cubic root of 1439769850 is about 1129.1830704957.

The spelling of 1439769850 in words is "one billion, four hundred thirty-nine million, seven hundred sixty-nine thousand, eight hundred fifty".