1620200007 has 12 divisors (see below), whose sum is σ = 2341524744. Its totient is φ = 1079562960.

The previous prime is 1620199979. The next prime is 1620200041. The reversal of 1620200007 is 7000020261.

It is a happy number.

It is not a de Polignac number, because 1620200007 - 2¹⁵ = 1620167239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620200047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29169 + ... + 63962.

It is an arithmetic number, because the mean of its divisors is an integer number (195127062).

Almost surely, 2^1620200007 is an apocalyptic number.

1620200007 is a deficient number, since it is larger than the sum of its proper divisors (721324737).

1620200007 is a wasteful number, since it uses less digits than its factorization.

1620200007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95070 (or 95067 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1620200007 is about 40251.7081252461. The cubic root of 1620200007 is about 1174.5086237526.

Adding to 1620200007 its reverse (7000020261), we get a palindrome (8620220268).

The spelling of 1620200007 in words is "one billion, six hundred twenty million, two hundred thousand, seven".