2921328 has 30 divisors (see below), whose sum is σ = 8176064. Its totient is φ = 973728.

The previous prime is 2921327. The next prime is 2921329. The reversal of 2921328 is 8231292.

It is a happy number.

2921328 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2921327) and next prime (2921329).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2921327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10000 + ... + 10287.

2^2921328 is an apocalyptic number.

It is an amenable number.

2921328 is an abundant number, since it is smaller than the sum of its proper divisors (5254736).

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

2921328 is a wasteful number, since it uses less digits than its factorization.

2921328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20301 (or 20292 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2921328 is about 1709.1892815016. The cubic root of 2921328 is about 142.9530548299.

It can be divided in two parts, 29213 and 28, that added together give a square (29241 = 171²).

The spelling of 2921328 in words is "two million, nine hundred twenty-one thousand, three hundred twenty-eight".