1622691630 has 240 divisors, whose sum is σ = 5222425824. Its totient is φ = 354119040.

The previous prime is 1622691557. The next prime is 1622691709. The reversal of 1622691630 is 361962261.

It is a happy number.

1622691630 is a `hidden beast` number, since 16 + 2 + 2 + 6 + 9 + 1 + 630 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2999160 + ... + 2999700.

Almost surely, 2^1622691630 is an apocalyptic number.

1622691630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1622691630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2611212912).

1622691630 is an abundant number, since it is smaller than the sum of its proper divisors (3599734194).

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

1622691630 is a wasteful number, since it uses less digits than its factorization.

1622691630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 1622691630 is about 40282.6467601125. The cubic root of 1622691630 is about 1175.1103876976.

The spelling of 1622691630 in words is "one billion, six hundred twenty-two million, six hundred ninety-one thousand, six hundred thirty".