3801840 has 160 divisors (see below), whose sum is σ = 14094336. Its totient is φ = 829440.

The previous prime is 3801839. The next prime is 3801857. The reversal of 3801840 is 481083.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3801840.

It is a congruent number.

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, 52044 + ... + 52116.

Almost surely, 2^3801840 is an apocalyptic number.

3801840 is a gapful number since it is divisible by the number (30) 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 3801840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7047168).

3801840 is an abundant number, since it is smaller than the sum of its proper divisors (10292496).

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

3801840 is a wasteful number, since it uses less digits than its factorization.

3801840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 3801840 is about 1949.8307618868. The cubic root of 3801840 is about 156.0742578749.

The spelling of 3801840 in words is "three million, eight hundred one thousand, eight hundred forty".