1620436052 has 12 divisors (see below), whose sum is σ = 2985013920. Its totient is φ = 767574936.

The previous prime is 1620436049. The next prime is 1620436057. The reversal of 1620436052 is 2506340261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620436057) 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 3 ways as a sum of consecutive naturals, for example, 10660688 + ... + 10660839.

It is an arithmetic number, because the mean of its divisors is an integer number (248751160).

Almost surely, 2^1620436052 is an apocalyptic number.

It is an amenable number.

1620436052 is a deficient number, since it is larger than the sum of its proper divisors (1364577868).

1620436052 is a wasteful number, since it uses less digits than its factorization.

1620436052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21321550 (or 21321548 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1620436052 is about 40254.6401300521. The cubic root of 1620436052 is about 1174.5656585681.

The spelling of 1620436052 in words is "one billion, six hundred twenty million, four hundred thirty-six thousand, fifty-two".