1620264562 has 16 divisors (see below), whose sum is σ = 2812757760. Its totient is φ = 685608768.

The previous prime is 1620264559. The next prime is 1620264563. The reversal of 1620264562 is 2654620261.

It is not an unprimeable number, because it can be changed into a prime (1620264563) 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, 731383 + ... + 733594.

It is an arithmetic number, because the mean of its divisors is an integer number (175797360).

Almost surely, 2^1620264562 is an apocalyptic number.

1620264562 is a deficient number, since it is larger than the sum of its proper divisors (1192493198).

1620264562 is a wasteful number, since it uses less digits than its factorization.

1620264562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465065.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1620264562 is about 40252.5100086939. The cubic root of 1620264562 is about 1174.5242225258.

The spelling of 1620264562 in words is "one billion, six hundred twenty million, two hundred sixty-four thousand, five hundred sixty-two".