1400011839 has 12 divisors (see below), whose sum is σ = 2022811336. Its totient is φ = 933077232.

The previous prime is 1400011819. The next prime is 1400011843. The reversal of 1400011839 is 9381100041.

It is not a de Polignac number, because 1400011839 - 2¹¹ = 1400009791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400011819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14832 + ... + 54954.

Almost surely, 2^1400011839 is an apocalyptic number.

1400011839 is a deficient number, since it is larger than the sum of its proper divisors (622799497).

1400011839 is a wasteful number, since it uses less digits than its factorization.

1400011839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44006 (or 44003 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1400011839 is about 37416.7320726971. The cubic root of 1400011839 is about 1118.6920954436.

The spelling of 1400011839 in words is "one billion, four hundred million, eleven thousand, eight hundred thirty-nine".