1622730340 has 192 divisors, whose sum is σ = 4619059200. Its totient is φ = 463449600.

The previous prime is 1622730331. The next prime is 1622730367. The reversal of 1622730340 is 430372261.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1622730299 and 1622730308.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 906166 + ... + 907954.

It is an arithmetic number, because the mean of its divisors is an integer number (24057600).

Almost surely, 2^1622730340 is an apocalyptic number.

1622730340 is a gapful number since it is divisible by the number (10) 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 1622730340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2309529600).

1622730340 is an abundant number, since it is smaller than the sum of its proper divisors (2996328860).

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

1622730340 is a wasteful number, since it uses less digits than its factorization.

1622730340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866 (or 1864 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 1622730340 is about 40283.1272370952. The cubic root of 1622730340 is about 1175.1197318762.

The spelling of 1622730340 in words is "one billion, six hundred twenty-two million, seven hundred thirty thousand, three hundred forty".