891145330 has 16 divisors (see below), whose sum is σ = 1641366144. Its totient is φ = 348168240.

The previous prime is 891145319. The next prime is 891145331. The reversal of 891145330 is 33541198.

It is not an unprimeable number, because it can be changed into a prime (891145331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1035786 + ... + 1036645.

It is an arithmetic number, because the mean of its divisors is an integer number (102585384).

Almost surely, 2^891145330 is an apocalyptic number.

891145330 is a deficient number, since it is larger than the sum of its proper divisors (750220814).

891145330 is a wasteful number, since it uses less digits than its factorization.

891145330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072481.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 891145330 is about 29852.0573830348. The cubic root of 891145330 is about 962.3126138834.

The spelling of 891145330 in words is "eight hundred ninety-one million, one hundred forty-five thousand, three hundred thirty".