1400006671 has 16 divisors (see below), whose sum is σ = 1608889600. Its totient is φ = 1193367168.

The previous prime is 1400006653. The next prime is 1400006677. The reversal of 1400006671 is 1766000041.

It is a happy number.

It is not a de Polignac number, because 1400006671 - 2¹⁷ = 1399875599 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 (1400006677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1387015 + ... + 1388023.

It is an arithmetic number, because the mean of its divisors is an integer number (100555600).

Almost surely, 2^1400006671 is an apocalyptic number.

1400006671 is a deficient number, since it is larger than the sum of its proper divisors (208882929).

1400006671 is a wasteful number, since it uses less digits than its factorization.

1400006671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1400006671 is about 37416.6630126205. The cubic root of 1400006671 is about 1118.6907189295.

The spelling of 1400006671 in words is "one billion, four hundred million, six thousand, six hundred seventy-one".