2153490 has 32 divisors (see below), whose sum is σ = 5394816. Its totient is φ = 549120.

The previous prime is 2153471. The next prime is 2153491. The reversal of 2153490 is 943512.

It is a self number, because there is not a number n which added to its sum of digits gives 2153490.

It is not an unprimeable number, because it can be changed into a prime (2153491) 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, 871 + ... + 2250.

It is an arithmetic number, because the mean of its divisors is an integer number (168588).

2^2153490 is an apocalyptic number.

2153490 is an abundant number, since it is smaller than the sum of its proper divisors (3241326).

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

2153490 is a wasteful number, since it uses less digits than its factorization.

2153490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 2153490 is about 1467.4774274244. The cubic root of 2153490 is about 129.1360861818.

The spelling of 2153490 in words is "two million, one hundred fifty-three thousand, four hundred ninety".