1322487738 has 96 divisors (see below), whose sum is σ = 3400330752. Its totient is φ = 366192000.

The previous prime is 1322487737. The next prime is 1322487763. The reversal of 1322487738 is 8377842231.

1322487738 is a `hidden beast` number, since 132 + 2 + 487 + 7 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1322487693 and 1322487702.

It is not an unprimeable number, because it can be changed into a prime (1322487731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 257431 + ... + 262517.

It is an arithmetic number, because the mean of its divisors is an integer number (35420112).

Almost surely, 2^1322487738 is an apocalyptic number.

1322487738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322487738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1700165376).

1322487738 is an abundant number, since it is smaller than the sum of its proper divisors (2077843014).

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

1322487738 is a wasteful number, since it uses less digits than its factorization.

1322487738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220 (or 5217 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 1322487738 is about 36366.0245008992. The cubic root of 1322487738 is about 1097.6500073946.

The spelling of 1322487738 in words is "one billion, three hundred twenty-two million, four hundred eighty-seven thousand, seven hundred thirty-eight".