1400440421139 has 4 divisors (see below), whose sum is σ = 1867253894856. Its totient is φ = 933626947424.

The previous prime is 1400440421123. The next prime is 1400440421189. The reversal of 1400440421139 is 9311240440041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1400440421139 - 2⁴ = 1400440421123 is a prime.

It is a super-2 number, since 2×1400440421139² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1400440421189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233406736854 + ... + 233406736859.

It is an arithmetic number, because the mean of its divisors is an integer number (466813473714).

Almost surely, 2^{1400440421139} is an apocalyptic number.

1400440421139 is a deficient number, since it is larger than the sum of its proper divisors (466813473717).

1400440421139 is an equidigital number, since it uses as much as digits as its factorization.

1400440421139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466813473716.

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 1400440421139 in words is "one trillion, four hundred billion, four hundred forty million, four hundred twenty-one thousand, one hundred thirty-nine".