1622331004 has 96 divisors (see below), whose sum is σ = 3432844800. Its totient is φ = 670150656.

The previous prime is 1622330999. The next prime is 1622331023. The reversal of 1622331004 is 4001332261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6312444 + ... + 6312700.

It is an arithmetic number, because the mean of its divisors is an integer number (35758800).

Almost surely, 2^1622331004 is an apocalyptic number.

1622331004 is a gapful number since it is divisible by the number (14) 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 1622331004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1716422400).

1622331004 is an abundant number, since it is smaller than the sum of its proper divisors (1810513796).

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

1622331004 is a wasteful number, since it uses less digits than its factorization.

1622331004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1622331004 is about 40278.1703159416. The cubic root of 1622331004 is about 1175.0233293089.

Adding to 1622331004 its reverse (4001332261), we get a palindrome (5623663265).

The spelling of 1622331004 in words is "one billion, six hundred twenty-two million, three hundred thirty-one thousand, four".