1622405253 has 16 divisors (see below), whose sum is σ = 2472906240. Its totient is φ = 926837616.

The previous prime is 1622405209. The next prime is 1622405287. The reversal of 1622405253 is 3525042261.

It is not a de Polignac number, because 1622405253 - 2²⁰ = 1621356677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1622405253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622405153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92458 + ... + 108596.

It is an arithmetic number, because the mean of its divisors is an integer number (154556640).

Almost surely, 2^1622405253 is an apocalyptic number.

It is an amenable number.

1622405253 is a deficient number, since it is larger than the sum of its proper divisors (850500987).

1622405253 is a wasteful number, since it uses less digits than its factorization.

1622405253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20936.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1622405253 is about 40279.0920081374. The cubic root of 1622405253 is about 1175.0412547459.

The spelling of 1622405253 in words is "one billion, six hundred twenty-two million, four hundred five thousand, two hundred fifty-three".