3755820 has 24 divisors (see below), whose sum is σ = 10516464. Its totient is φ = 1001536.

The previous prime is 3755809. The next prime is 3755821. The reversal of 3755820 is 285573.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (3755821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31239 + ... + 31358.

It is an arithmetic number, because the mean of its divisors is an integer number (438186).

Almost surely, 2^3755820 is an apocalyptic number.

3755820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3755820 is an abundant number, since it is smaller than the sum of its proper divisors (6760644).

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

3755820 is a wasteful number, since it uses less digits than its factorization.

3755820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62609 (or 62607 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 3755820 is about 1937.9938080396. The cubic root of 3755820 is about 155.4419575010.

The spelling of 3755820 in words is "three million, seven hundred fifty-five thousand, eight hundred twenty".