2661450 has 48 divisors (see below), whose sum is σ = 7204896. Its totient is φ = 644800.

The previous prime is 2661427. The next prime is 2661457. The reversal of 2661450 is 541662.

It is a super-2 number, since 2×2661450² = 14166632205000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2661450.

It is not an unprimeable number, because it can be changed into a prime (2661457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 844 + ... + 2456.

It is an arithmetic number, because the mean of its divisors is an integer number (150102).

2^2661450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2661450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3602448).

2661450 is an abundant number, since it is smaller than the sum of its proper divisors (4543446).

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

2661450 is a wasteful number, since it uses less digits than its factorization.

2661450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639 (or 1634 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2661450 is about 1631.3951084884. The cubic root of 2661450 is about 138.5817699746.

The spelling of 2661450 in words is "two million, six hundred sixty-one thousand, four hundred fifty".