622273464 has 72 divisors (see below), whose sum is σ = 1761472440. Its totient is φ = 198082368.

The previous prime is 622273451. The next prime is 622273471. The reversal of 622273464 is 464372226.

622273464 is a `hidden beast` number, since 622 + 27 + 3 + 4 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1014822 + ... + 1015434.

It is an arithmetic number, because the mean of its divisors is an integer number (24464895).

Almost surely, 2^622273464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622273464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (880736220).

622273464 is an abundant number, since it is smaller than the sum of its proper divisors (1139198976).

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

622273464 is a wasteful number, since it uses less digits than its factorization.

622273464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261 (or 641 counting only the distinct ones).

The product of its digits is 96768, while the sum is 36.

The square root of 622273464 is about 24945.4096779347. The cubic root of 622273464 is about 853.7428780935.

The spelling of 622273464 in words is "six hundred twenty-two million, two hundred seventy-three thousand, four hundred sixty-four".