622789740 has 72 divisors (see below), whose sum is σ = 1895017488. Its totient is φ = 165559680.

The previous prime is 622789711. The next prime is 622789751. The reversal of 622789740 is 47987226.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54354 + ... + 64806.

Almost surely, 2^622789740 is an apocalyptic number.

622789740 is a gapful number since it is divisible by the number (60) 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 622789740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (947508744).

622789740 is an abundant number, since it is smaller than the sum of its proper divisors (1272227748).

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

622789740 is a wasteful number, since it uses less digits than its factorization.

622789740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10799 (or 10794 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 622789740 is about 24955.7556487476. The cubic root of 622789740 is about 853.9789185398.

The spelling of 622789740 in words is "six hundred twenty-two million, seven hundred eighty-nine thousand, seven hundred forty".