3724040 has 32 divisors (see below), whose sum is σ = 8446680. Its totient is φ = 1477632.

The previous prime is 3724033. The next prime is 3724043. The reversal of 3724040 is 404273.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2829124 + 894916 = 1682^2 + 946^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (3724043) 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, 5984 + ... + 6576.

Almost surely, 2^3724040 is an apocalyptic number.

It is an amenable number.

3724040 is an abundant number, since it is smaller than the sum of its proper divisors (4722640).

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

3724040 is a wasteful number, since it uses less digits than its factorization.

3724040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 3724040 is about 1929.7771892112. Note that the first 3 decimals coincide. The cubic root of 3724040 is about 155.0022892482.

The spelling of 3724040 in words is "three million, seven hundred twenty-four thousand, forty".