1428626906 has 32 divisors (see below), whose sum is σ = 2524795392. Its totient is φ = 593464320.

The previous prime is 1428626897. The next prime is 1428626933. The reversal of 1428626906 is 6096268241.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 135290 + ... + 145466.

It is an arithmetic number, because the mean of its divisors is an integer number (78899856).

Almost surely, 2^1428626906 is an apocalyptic number.

1428626906 is a deficient number, since it is larger than the sum of its proper divisors (1096168486).

1428626906 is a wasteful number, since it uses less digits than its factorization.

1428626906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10494.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 1428626906 is about 37797.1811911947. The cubic root of 1428626906 is about 1126.2624592334.

The spelling of 1428626906 in words is "one billion, four hundred twenty-eight million, six hundred twenty-six thousand, nine hundred six".