1405966628 has 24 divisors (see below), whose sum is σ = 2685070080. Its totient is φ = 638849120.

The previous prime is 1405966621. The next prime is 1405966673. The reversal of 1405966628 is 8266695041.

It is not an unprimeable number, because it can be changed into a prime (1405966621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229250 + ... + 235302.

It is an arithmetic number, because the mean of its divisors is an integer number (111877920).

Almost surely, 2^1405966628 is an apocalyptic number.

It is an amenable number.

1405966628 is a deficient number, since it is larger than the sum of its proper divisors (1279103452).

1405966628 is a wasteful number, since it uses less digits than its factorization.

1405966628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11347 (or 11345 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 1405966628 is about 37496.2215163075. The cubic root of 1405966628 is about 1120.2759279765.

The spelling of 1405966628 in words is "one billion, four hundred five million, nine hundred sixty-six thousand, six hundred twenty-eight".