3542405 has 4 divisors (see below), whose sum is σ = 4250892. Its totient is φ = 2833920.

The previous prime is 3542387. The next prime is 3542423. The reversal of 3542405 is 5042453.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3542387) and next prime (3542423).

It can be written as a sum of positive squares in 2 ways, for example, as 662596 + 2879809 = 814^2 + 1697^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3542405 is a prime.

It is a super-3 number, since 3×3542405³ (a number of 21 digits) contains 333 as substring.

It is a d-powerful number, because it can be written as 3³ + 5 + 4⁷ + 2¹⁹ + 4¹⁰ + 0 + 5⁹ .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354236 + ... + 354245.

It is an arithmetic number, because the mean of its divisors is an integer number (1062723).

Almost surely, 2^3542405 is an apocalyptic number.

It is an amenable number.

3542405 is a deficient number, since it is larger than the sum of its proper divisors (708487).

3542405 is an equidigital number, since it uses as much as digits as its factorization.

3542405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708486.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 3542405 is about 1882.1277852473. The cubic root of 3542405 is about 152.4401628543.

Adding to 3542405 its reverse (5042453), we get a palindrome (8584858).

The spelling of 3542405 in words is "three million, five hundred forty-two thousand, four hundred five".