1406655146 has 16 divisors (see below), whose sum is σ = 2297824200. Its totient is φ = 641929728.

The previous prime is 1406655109. The next prime is 1406655149. The reversal of 1406655146 is 6415566041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1032658225 + 373996921 = 32135^2 + 19339^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1406655149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301631 + ... + 306258.

Almost surely, 2^1406655146 is an apocalyptic number.

1406655146 is a deficient number, since it is larger than the sum of its proper divisors (891169054).

1406655146 is a wasteful number, since it uses less digits than its factorization.

1406655146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607993.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 1406655146 is about 37505.4015576423. The cubic root of 1406655146 is about 1120.4587687947.

The spelling of 1406655146 in words is "one billion, four hundred six million, six hundred fifty-five thousand, one hundred forty-six".