3825720 has 48 divisors (see below), whose sum is σ = 12434760. Its totient is φ = 1020096.

The previous prime is 3825713. The next prime is 3825721. The reversal of 3825720 is 275283.

It is a super-2 number, since 2×3825720² = 29272267036800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3825721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4954 + ... + 5673.

Almost surely, 2^3825720 is an apocalyptic number.

3825720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3825720 is an abundant number, since it is smaller than the sum of its proper divisors (8609040).

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

3825720 is a wasteful number, since it uses less digits than its factorization.

3825720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10644 (or 10637 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 3825720 is about 1955.9447844967. The cubic root of 3825720 is about 156.4003523430.

The spelling of 3825720 in words is "three million, eight hundred twenty-five thousand, seven hundred twenty".