3773840 has 80 divisors (see below), whose sum is σ = 10499328. Its totient is φ = 1233408.

The previous prime is 3773839. The next prime is 3773849. The reversal of 3773840 is 483773.

It is a tau number, because it is divible by the number of its divisors (80).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3773797 and 3773806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3773849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12734 + ... + 13026.

Almost surely, 2^3773840 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 3773840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5249664).

3773840 is an abundant number, since it is smaller than the sum of its proper divisors (6725488).

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

3773840 is a wasteful number, since it uses less digits than its factorization.

3773840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 3773840 is about 1942.6373825292. The cubic root of 3773840 is about 155.6901586259.

The spelling of 3773840 in words is "three million, seven hundred seventy-three thousand, eight hundred forty".