1406941668 has 36 divisors (see below), whose sum is σ = 3879749328. Its totient is φ = 426345840.

The previous prime is 1406941667. The next prime is 1406941673. The reversal of 1406941668 is 8661496041.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1406941667) 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 11 ways as a sum of consecutive naturals, for example, 1776046 + ... + 1776837.

Almost surely, 2^1406941668 is an apocalyptic number.

1406941668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1406941668 is an abundant number, since it is smaller than the sum of its proper divisors (2472807660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1406941668 is a wasteful number, since it uses less digits than its factorization.

1406941668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552904 (or 3552899 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1406941668 is about 37509.2211062827. The cubic root of 1406941668 is about 1120.5348391553.

The spelling of 1406941668 in words is "one billion, four hundred six million, nine hundred forty-one thousand, six hundred sixty-eight".