1622400113 has 6 divisors (see below), whose sum is σ = 1650368034. Its totient is φ = 1594898384.

The previous prime is 1622400089. The next prime is 1622400121. The reversal of 1622400113 is 3110042261.

It can be written as a sum of positive squares in only one way, i.e., 1595443249 + 26956864 = 39943^2 + 5192^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1622400113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1622400133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229556 + ... + 236517.

It is an arithmetic number, because the mean of its divisors is an integer number (275061339).

Almost surely, 2^1622400113 is an apocalyptic number.

It is an amenable number.

1622400113 is a deficient number, since it is larger than the sum of its proper divisors (27967921).

1622400113 is an frugal number, since it uses more digits than its factorization.

1622400113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466191 (or 466132 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1622400113 is about 40279.0282032722. The cubic root of 1622400113 is about 1175.0400138478.

Adding to 1622400113 its reverse (3110042261), we get a palindrome (4732442374).

The spelling of 1622400113 in words is "one billion, six hundred twenty-two million, four hundred thousand, one hundred thirteen".