3743820 has 60 divisors (see below), whose sum is σ = 11749584. Its totient is φ = 997920.

The previous prime is 3743797. The next prime is 3743837. The reversal of 3743820 is 283473.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 465 + ... + 2775.

Almost surely, 2^3743820 is an apocalyptic number.

3743820 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 3743820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5874792).

3743820 is an abundant number, since it is smaller than the sum of its proper divisors (8005764).

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

3743820 is a wasteful number, since it uses less digits than its factorization.

3743820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332 (or 2321 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 3743820 is about 1934.8953460071. The cubic root of 3743820 is about 155.2762330522.

The spelling of 3743820 in words is "three million, seven hundred forty-three thousand, eight hundred twenty".