1406342066 has 24 divisors (see below), whose sum is σ = 2238159924. Its totient is φ = 662332160.

The previous prime is 1406342033. The next prime is 1406342071. The reversal of 1406342066 is 6602436041.

It can be written as a sum of positive squares in 6 ways, for example, as 381381841 + 1024960225 = 19529^2 + 32015^2 .

It is a super-2 number, since 2×1406342066² = 3955596013202296712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58766 + ... + 79158.

Almost surely, 2^1406342066 is an apocalyptic number.

1406342066 is a deficient number, since it is larger than the sum of its proper divisors (831817858).

1406342066 is a wasteful number, since it uses less digits than its factorization.

1406342066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20494 (or 20465 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 1406342066 is about 37501.2275265757. The cubic root of 1406342066 is about 1120.3756355878.

The spelling of 1406342066 in words is "one billion, four hundred six million, three hundred forty-two thousand, sixty-six".