1622921424 has 120 divisors (see below), whose sum is σ = 4379558976. Its totient is φ = 517824000.

The previous prime is 1622921413. The next prime is 1622921471. The reversal of 1622921424 is 4241292261.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6965212 + ... + 6965444.

Almost surely, 2^1622921424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1622921424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2189779488).

1622921424 is an abundant number, since it is smaller than the sum of its proper divisors (2756637552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1622921424 is a wasteful number, since it uses less digits than its factorization.

1622921424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 420 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 1622921424 is about 40285.4989295156. The cubic root of 1622921424 is about 1175.1658553263.

The spelling of 1622921424 in words is "one billion, six hundred twenty-two million, nine hundred twenty-one thousand, four hundred twenty-four".