622463940 has 384 divisors, whose sum is σ = 2380492800. Its totient is φ = 133529472.

The previous prime is 622463899. The next prime is 622463971. The reversal of 622463940 is 49364226.

It is a super-2 number, since 2×622463940² = 774922713200647200, 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 = 622463895 and 622463904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5817367 + ... + 5817473.

It is an arithmetic number, because the mean of its divisors is an integer number (6199200).

Almost surely, 2^622463940 is an apocalyptic number.

622463940 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 622463940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1190246400).

622463940 is an abundant number, since it is smaller than the sum of its proper divisors (1758028860).

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

622463940 is a wasteful number, since it uses less digits than its factorization.

622463940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 143 counting only the distinct ones).

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

The square root of 622463940 is about 24949.2272425420. The cubic root of 622463940 is about 853.8299785664.

The spelling of 622463940 in words is "six hundred twenty-two million, four hundred sixty-three thousand, nine hundred forty".