912621330 has 40 divisors (see below), whose sum is σ = 2453939532. Its totient is φ = 243365472.

The previous prime is 912621323. The next prime is 912621331. The reversal of 912621330 is 33126219.

912621330 is a `hidden beast` number, since 9 + 1 + 2 + 621 + 3 + 30 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 833072769 + 79548561 = 28863^2 + 8919^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 912621294 and 912621303.

It is not an unprimeable number, because it can be changed into a prime (912621331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 562537 + ... + 564156.

Almost surely, 2^912621330 is an apocalyptic number.

912621330 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

912621330 is an abundant number, since it is smaller than the sum of its proper divisors (1541318202).

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

912621330 is a wasteful number, since it uses less digits than its factorization.

912621330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126712 (or 1126703 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 912621330 is about 30209.6231356831. The cubic root of 912621330 is about 969.9816944857.

Adding to 912621330 its reverse (33126219), we get a palindrome (945747549).

The spelling of 912621330 in words is "nine hundred twelve million, six hundred twenty-one thousand, three hundred thirty".