2149650 has 72 divisors (see below), whose sum is σ = 6136884. Its totient is φ = 537600.

The previous prime is 2149621. The next prime is 2149661. The reversal of 2149650 is 569412.

2149650 is a `hidden beast` number, since 2 + 1 + 4 + 9 + 650 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 1279161 + 870489 = 1131^2 + 933^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7510 + ... + 7790.

2^2149650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2149650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3068442).

2149650 is an abundant number, since it is smaller than the sum of its proper divisors (3987234).

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

2149650 is a wasteful number, since it uses less digits than its factorization.

2149650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2149650 is about 1466.1684759945. The cubic root of 2149650 is about 129.0592840903.

The spelling of 2149650 in words is "two million, one hundred forty-nine thousand, six hundred fifty".