1439140485 has 8 divisors (see below), whose sum is σ = 2302624800. Its totient is φ = 767541584.

The previous prime is 1439140459. The next prime is 1439140499. The reversal of 1439140485 is 5840419341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1439140485 - 2⁵ = 1439140453 is a prime.

It is a super-2 number, since 2×1439140485² = 4142250671132070450, which contains 22 as substring.

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, 47971335 + ... + 47971364.

It is an arithmetic number, because the mean of its divisors is an integer number (287828100).

Almost surely, 2^1439140485 is an apocalyptic number.

1439140485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1439140485 is a deficient number, since it is larger than the sum of its proper divisors (863484315).

1439140485 is an equidigital number, since it uses as much as digits as its factorization.

1439140485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95942707.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 1439140485 is about 37936.0051270557. The cubic root of 1439140485 is about 1129.0185136675.

The spelling of 1439140485 in words is "one billion, four hundred thirty-nine million, one hundred forty thousand, four hundred eighty-five".