3609942 has 64 divisors (see below), whose sum is σ = 8930304. Its totient is φ = 950400.

The previous prime is 3609941. The next prime is 3609953. The reversal of 3609942 is 2499063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3609941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35692 + ... + 35792.

It is an arithmetic number, because the mean of its divisors is an integer number (139536).

Almost surely, 2^3609942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3609942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4465152).

3609942 is an abundant number, since it is smaller than the sum of its proper divisors (5320362).

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

3609942 is a wasteful number, since it uses less digits than its factorization.

3609942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 3609942 is about 1899.9847367808. The cubic root of 3609942 is about 153.4028428811.

The spelling of 3609942 in words is "three million, six hundred nine thousand, nine hundred forty-two".