9218021376 has 96 divisors (see below), whose sum is σ = 24618746880. Its totient is φ = 3067256832.

The previous prime is 9218021321. The next prime is 9218021387. The reversal of 9218021376 is 6731208129.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5055601 + ... + 5057423.

It is an arithmetic number, because the mean of its divisors is an integer number (256445280).

Almost surely, 2^9218021376 is an apocalyptic number.

9218021376 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9218021376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12309373440).

9218021376 is an abundant number, since it is smaller than the sum of its proper divisors (15400725504).

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

9218021376 is a wasteful number, since it uses less digits than its factorization.

9218021376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671 (or 2651 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 9218021376 is about 96010.5274227780. The cubic root of 9218021376 is about 2096.7463884139.

The spelling of 9218021376 in words is "nine billion, two hundred eighteen million, twenty-one thousand, three hundred seventy-six".