3561090 has 64 divisors (see below), whose sum is σ = 9628416. Its totient is φ = 836352.

The previous prime is 3561073. The next prime is 3561091. The reversal of 3561090 is 901653.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3561090.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561091) 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, 8772 + ... + 9168.

It is an arithmetic number, because the mean of its divisors is an integer number (150444).

Almost surely, 2^3561090 is an apocalyptic number.

3561090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3561090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4814208).

3561090 is an abundant number, since it is smaller than the sum of its proper divisors (6067326).

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

3561090 is a wasteful number, since it uses less digits than its factorization.

3561090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 3561090 is about 1887.0850537270. The cubic root of 3561090 is about 152.7077165874.

The spelling of 3561090 in words is "three million, five hundred sixty-one thousand, ninety".