1622797752 has 128 divisors (see below), whose sum is σ = 4478976000. Its totient is φ = 487681920.

The previous prime is 1622797751. The next prime is 1622797789. The reversal of 1622797752 is 2577972261.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622797751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3764977 + ... + 3765407.

It is an arithmetic number, because the mean of its divisors is an integer number (34992000).

Almost surely, 2^1622797752 is an apocalyptic number.

1622797752 is a gapful number since it is divisible by the number (12) 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 1622797752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2239488000).

1622797752 is an abundant number, since it is smaller than the sum of its proper divisors (2856178248).

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

1622797752 is a wasteful number, since it uses less digits than its factorization.

1622797752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841 (or 837 counting only the distinct ones).

The product of its digits is 740880, while the sum is 48.

The square root of 1622797752 is about 40283.9639558969. The cubic root of 1622797752 is about 1175.1360040550.

The spelling of 1622797752 in words is "one billion, six hundred twenty-two million, seven hundred ninety-seven thousand, seven hundred fifty-two".