1406660741 has 4 divisors (see below), whose sum is σ = 1406764332. Its totient is φ = 1406557152.

The previous prime is 1406660737. The next prime is 1406660797. The reversal of 1406660741 is 1470666041.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 162052900 + 1244607841 = 12730^2 + 35279^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406660741 - 2² = 1406660737 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 (1406660711) 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, 27686 + ... + 59831.

It is an arithmetic number, because the mean of its divisors is an integer number (351691083).

Almost surely, 2^1406660741 is an apocalyptic number.

It is an amenable number.

1406660741 is a deficient number, since it is larger than the sum of its proper divisors (103591).

1406660741 is an equidigital number, since it uses as much as digits as its factorization.

1406660741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103590.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1406660741 is about 37505.4761468242. The cubic root of 1406660741 is about 1120.4602543421.

The spelling of 1406660741 in words is "one billion, four hundred six million, six hundred sixty thousand, seven hundred forty-one".