1622321452 has 6 divisors (see below), whose sum is σ = 2839062548. Its totient is φ = 811160724.

The previous prime is 1622321429. The next prime is 1622321453. The reversal of 1622321452 is 2541232261.

It is a self number, because there is not a number n which added to its sum of digits gives 1622321452.

It is not an unprimeable number, because it can be changed into a prime (1622321453) 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 as a sum of consecutive naturals, namely, 202790178 + ... + 202790185.

Almost surely, 2^1622321452 is an apocalyptic number.

It is an amenable number.

1622321452 is a deficient number, since it is larger than the sum of its proper divisors (1216741096).

1622321452 is a wasteful number, since it uses less digits than its factorization.

1622321452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405580367 (or 405580365 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 1622321452 is about 40278.0517403710. The cubic root of 1622321452 is about 1175.0210231941.

It can be divided in two parts, 16223 and 21452, that added together give a triangular number (37675 = T₂₇₄).

The spelling of 1622321452 in words is "one billion, six hundred twenty-two million, three hundred twenty-one thousand, four hundred fifty-two".