3720240 has 60 divisors (see below), whose sum is σ = 12496224. Its totient is φ = 991872.

The previous prime is 3720209. The next prime is 3720247. The reversal of 3720240 is 420273.

It is a happy number.

3720240 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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 (18).

It is not an unprimeable number, because it can be changed into a prime (3720247) 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, 1864 + ... + 3303.

Almost surely, 2^3720240 is an apocalyptic number.

3720240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3720240 is an abundant number, since it is smaller than the sum of its proper divisors (8775984).

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

3720240 is a wasteful number, since it uses less digits than its factorization.

3720240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5186 (or 5177 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 3720240 is about 1928.7923682968. The cubic root of 3720240 is about 154.9495500050.

The spelling of 3720240 in words is "three million, seven hundred twenty thousand, two hundred forty".