3509742 has 16 divisors (see below), whose sum is σ = 7038720. Its totient is φ = 1166712.

The previous prime is 3509741. The next prime is 3509749. The reversal of 3509742 is 2479053.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3509741) 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, 2859 + ... + 3897.

It is an arithmetic number, because the mean of its divisors is an integer number (439920).

Almost surely, 2^3509742 is an apocalyptic number.

3509742 is an abundant number, since it is smaller than the sum of its proper divisors (3528978).

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

3509742 is a wasteful number, since it uses less digits than its factorization.

3509742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 3509742 is about 1873.4305431481. The cubic root of 3509742 is about 151.9701869045.

The spelling of 3509742 in words is "three million, five hundred nine thousand, seven hundred forty-two".