1306225392 has 20 divisors (see below), whose sum is σ = 3374415720. Its totient is φ = 435408448.

The previous prime is 1306225387. The next prime is 1306225423. The reversal of 1306225392 is 2935226031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13606467 + ... + 13606562.

It is an arithmetic number, because the mean of its divisors is an integer number (168720786).

Almost surely, 2^1306225392 is an apocalyptic number.

1306225392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1306225392 is an abundant number, since it is smaller than the sum of its proper divisors (2068190328).

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

1306225392 is a wasteful number, since it uses less digits than its factorization.

1306225392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27213040 (or 27213034 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 1306225392 is about 36141.7403012085. The cubic root of 1306225392 is about 1093.1322501833.

The spelling of 1306225392 in words is "one billion, three hundred six million, two hundred twenty-five thousand, three hundred ninety-two".