2622329640 has 448 divisors, whose sum is σ = 10482307200. Its totient is φ = 577414656.

The previous prime is 2622329627. The next prime is 2622329663. The reversal of 2622329640 is 469232262.

2622329640 is a `hidden beast` number, since 2 + 6 + 2 + 2 + 3 + 2 + 9 + 640 = 666.

It is a super-2 number, since 2×2622329640² = 13753225481645059200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2622329595 and 2622329604.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 5919259 + ... + 5919701.

Almost surely, 2^2622329640 is an apocalyptic number.

2622329640 is a gapful number since it is divisible by the number (20) 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 2622329640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5241153600).

2622329640 is an abundant number, since it is smaller than the sum of its proper divisors (7859977560).

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

2622329640 is a wasteful number, since it uses less digits than its factorization.

2622329640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 2622329640 is about 51208.6871536461. The cubic root of 2622329640 is about 1378.9941630867.

The spelling of 2622329640 in words is "two billion, six hundred twenty-two million, three hundred twenty-nine thousand, six hundred forty".