3540024 has 56 divisors (see below), whose sum is σ = 9968160. Its totient is φ = 1178064.

The previous prime is 3539971. The next prime is 3540041. The reversal of 3540024 is 4200453.

It is a happy number.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3539979 and 3540006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 5529 + ... + 6135.

Almost surely, 2^3540024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3540024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4984080).

3540024 is an abundant number, since it is smaller than the sum of its proper divisors (6428136).

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

3540024 is an equidigital number, since it uses as much as digits as its factorization.

3540024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 3540024 is about 1881.4951501399. The cubic root of 3540024 is about 152.4060013757.

Adding to 3540024 its reverse (4200453), we get a palindrome (7740477).

The spelling of 3540024 in words is "three million, five hundred forty thousand, twenty-four".