1622475456 has 336 divisors, whose sum is σ = 5281574400. Its totient is φ = 437778432.

The previous prime is 1622475409. The next prime is 1622475509. The reversal of 1622475456 is 6545742261.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20537625 + ... + 20537703.

Almost surely, 2^1622475456 is an apocalyptic number.

1622475456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1622475456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2640787200).

1622475456 is an abundant number, since it is smaller than the sum of its proper divisors (3659098944).

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

1622475456 is a wasteful number, since it uses less digits than its factorization.

1622475456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 187 counting only the distinct ones).

The product of its digits is 403200, while the sum is 42.

The square root of 1622475456 is about 40279.9634557928. The cubic root of 1622475456 is about 1175.0582028812.

The spelling of 1622475456 in words is "one billion, six hundred twenty-two million, four hundred seventy-five thousand, four hundred fifty-six".