891054120 has 128 divisors (see below), whose sum is σ = 2929322880. Its totient is φ = 215040000.

The previous prime is 891054113. The next prime is 891054137. The reversal of 891054120 is 21450198.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 316720 + ... + 319520.

It is an arithmetic number, because the mean of its divisors is an integer number (22885335).

Almost surely, 2^891054120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 891054120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1464661440).

891054120 is an abundant number, since it is smaller than the sum of its proper divisors (2038268760).

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

891054120 is a wasteful number, since it uses less digits than its factorization.

891054120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067 (or 3063 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 891054120 is about 29850.5296435423. The cubic root of 891054120 is about 962.2797814054.

The spelling of 891054120 in words is "eight hundred ninety-one million, fifty-four thousand, one hundred twenty".