1306655622 has 48 divisors (see below), whose sum is σ = 2962878048. Its totient is φ = 415388160.

The previous prime is 1306655617. The next prime is 1306655627. The reversal of 1306655622 is 2265566031.

It is a happy number.

1306655622 is a `hidden beast` number, since 1 + 30 + 6 + 65 + 562 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1306655617) and next prime (1306655627).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306655627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141672 + ... + 150612.

It is an arithmetic number, because the mean of its divisors is an integer number (61726626).

Almost surely, 2^1306655622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1306655622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1481439024).

1306655622 is an abundant number, since it is smaller than the sum of its proper divisors (1656222426).

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

1306655622 is a wasteful number, since it uses less digits than its factorization.

1306655622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9325 (or 9322 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 1306655622 is about 36147.6917935295. The cubic root of 1306655622 is about 1093.2522515925.

The spelling of 1306655622 in words is "one billion, three hundred six million, six hundred fifty-five thousand, six hundred twenty-two".