1406034661 has 4 divisors (see below), whose sum is σ = 1406440000. Its totient is φ = 1405629324.

The previous prime is 1406034649. The next prime is 1406034673. The reversal of 1406034661 is 1664306041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1406034649) and next prime (1406034673).

It is a cyclic number.

It is not a de Polignac number, because 1406034661 - 2⁷ = 1406034533 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 (1406034601) 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, 197421 + ... + 204418.

It is an arithmetic number, because the mean of its divisors is an integer number (351610000).

Almost surely, 2^1406034661 is an apocalyptic number.

It is an amenable number.

1406034661 is a deficient number, since it is larger than the sum of its proper divisors (405339).

1406034661 is an equidigital number, since it uses as much as digits as its factorization.

1406034661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405338.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1406034661 is about 37497.1287034087. The cubic root of 1406034661 is about 1120.2939972776.

The spelling of 1406034661 in words is "one billion, four hundred six million, thirty-four thousand, six hundred sixty-one".