3542240 has 72 divisors (see below), whose sum is σ = 9130968. Its totient is φ = 1297920.

The previous prime is 3542233. The next prime is 3542243. The reversal of 3542240 is 422453.

3542240 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×3542240³ (a number of 21 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3542243) 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, 26975 + ... + 27105.

It is an arithmetic number, because the mean of its divisors is an integer number (126819).

Almost surely, 2^3542240 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 3542240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4565484).

3542240 is an abundant number, since it is smaller than the sum of its proper divisors (5588728).

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

3542240 is a wasteful number, since it uses less digits than its factorization.

3542240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 3542240 is about 1882.0839513688. The cubic root of 3542240 is about 152.4377960049.

Adding to 3542240 its reverse (422453), we get a palindrome (3964693).

The spelling of 3542240 in words is "three million, five hundred forty-two thousand, two hundred forty".