2961618 has 32 divisors (see below), whose sum is σ = 6746112. Its totient is φ = 858000.

The previous prime is 2961613. The next prime is 2961619. The reversal of 2961618 is 8161692.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2961613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543 + ... + 2493.

It is an arithmetic number, because the mean of its divisors is an integer number (210816).

2^2961618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2961618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3373056).

2961618 is an abundant number, since it is smaller than the sum of its proper divisors (3784494).

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

2961618 is a wasteful number, since it uses less digits than its factorization.

2961618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990.

The product of its digits is 5184, while the sum is 33.

The square root of 2961618 is about 1720.9352108665. The cubic root of 2961618 is about 143.6072437849.

The spelling of 2961618 in words is "two million, nine hundred sixty-one thousand, six hundred eighteen".