2149550 has 24 divisors (see below), whose sum is σ = 4307016. Its totient is φ = 793440.

The previous prime is 2149517. The next prime is 2149559. The reversal of 2149550 is 559412.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1004 + ... + 2303.

It is an arithmetic number, because the mean of its divisors is an integer number (179459).

2^2149550 is an apocalyptic number.

2149550 is an abundant number, since it is smaller than the sum of its proper divisors (2157466).

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

2149550 is a wasteful number, since it uses less digits than its factorization.

2149550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332 (or 3327 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 2149550 is about 1466.1343731050. The cubic root of 2149550 is about 129.0572828144.

The spelling of 2149550 in words is "two million, one hundred forty-nine thousand, five hundred fifty".