3542021 has 8 divisors (see below), whose sum is σ = 4086720. Its totient is φ = 3007008.

The previous prime is 3542009. The next prime is 3542051. The reversal of 3542021 is 1202453.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3542021 - 2⁶ = 3541957 is a prime.

It is a super-3 number, since 3×3542021³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3542051) 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, 1616 + ... + 3113.

It is an arithmetic number, because the mean of its divisors is an integer number (510840).

Almost surely, 2^3542021 is an apocalyptic number.

It is an amenable number.

3542021 is a deficient number, since it is larger than the sum of its proper divisors (544699).

3542021 is a wasteful number, since it uses less digits than its factorization.

3542021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4843.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 3542021 is about 1882.0257702805. The cubic root of 3542021 is about 152.4346544368.

Adding to 3542021 its reverse (1202453), we get a palindrome (4744474).

The spelling of 3542021 in words is "three million, five hundred forty-two thousand, twenty-one".