3561942 has 32 divisors (see below), whose sum is σ = 7713792. Its totient is φ = 1092224.

The previous prime is 3561913. The next prime is 3561947. The reversal of 3561942 is 2491653.

It is a super-2 number, since 2×3561942² = 25374861622728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4423 + ... + 5165.

It is an arithmetic number, because the mean of its divisors is an integer number (241056).

Almost surely, 2^3561942 is an apocalyptic number.

3561942 is an abundant number, since it is smaller than the sum of its proper divisors (4151850).

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

3561942 is a wasteful number, since it uses less digits than its factorization.

3561942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812.

The product of its digits is 6480, while the sum is 30.

The square root of 3561942 is about 1887.3107852180. The cubic root of 3561942 is about 152.7198941885.

The spelling of 3561942 in words is "three million, five hundred sixty-one thousand, nine hundred forty-two".