3933280 has 96 divisors (see below), whose sum is σ = 10499328. Its totient is φ = 1382400.

The previous prime is 3933277. The next prime is 3933301. The reversal of 3933280 is 823393.

3933280 = T₄₉₇ + T₄₉₈ + ... + T₅₂₆.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64450 + ... + 64510.

It is an arithmetic number, because the mean of its divisors is an integer number (109368).

Almost surely, 2^3933280 is an apocalyptic number.

3933280 is the 992-nd decagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3933280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5249664).

3933280 is an abundant number, since it is smaller than the sum of its proper divisors (6566048).

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

3933280 is a wasteful number, since it uses less digits than its factorization.

3933280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 3933280 is about 1983.2498581873. The cubic root of 3933280 is about 157.8525569982.

The spelling of 3933280 in words is "three million, nine hundred thirty-three thousand, two hundred eighty".