3721740 has 48 divisors (see below), whose sum is σ = 11370240. Its totient is φ = 902080.

The previous prime is 3721727. The next prime is 3721741. The reversal of 3721740 is 471273.

3721740 = T₃₈₄ + T₃₈₅ + ... + T₄₂₈.

It is a self number, because there is not a number n which added to its sum of digits gives 3721740.

It is not an unprimeable number, because it can be changed into a prime (3721741) 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, 2160 + ... + 3479.

It is an arithmetic number, because the mean of its divisors is an integer number (236880).

Almost surely, 2^3721740 is an apocalyptic number.

3721740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3721740 is an abundant number, since it is smaller than the sum of its proper divisors (7648500).

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

3721740 is a wasteful number, since it uses less digits than its factorization.

3721740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5662 (or 5660 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 3721740 is about 1929.1811734516. The cubic root of 3721740 is about 154.9703724156.

It can be divided in two parts, 372 and 1740, that added together give a palindrome (2112).

The spelling of 3721740 in words is "three million, seven hundred twenty-one thousand, seven hundred forty".