1620284626 has 16 divisors (see below), whose sum is σ = 2531040768. Its totient is φ = 777067200.

The previous prime is 1620284621. The next prime is 1620284639. The reversal of 1620284626 is 6264820261.

It is not an unprimeable number, because it can be changed into a prime (1620284621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108630 + ... + 122641.

It is an arithmetic number, because the mean of its divisors is an integer number (158190048).

Almost surely, 2^1620284626 is an apocalyptic number.

1620284626 is a deficient number, since it is larger than the sum of its proper divisors (910756142).

1620284626 is a wasteful number, since it uses less digits than its factorization.

1620284626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231417.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 1620284626 is about 40252.7592346165. The cubic root of 1620284626 is about 1174.5290706140.

The spelling of 1620284626 in words is "one billion, six hundred twenty million, two hundred eighty-four thousand, six hundred twenty-six".