2149390 has 8 divisors (see below), whose sum is σ = 3868920. Its totient is φ = 859752.

The previous prime is 2149379. The next prime is 2149391. The reversal of 2149390 is 939412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107460 + ... + 107479.

It is an arithmetic number, because the mean of its divisors is an integer number (483615).

2^2149390 is an apocalyptic number.

2149390 is a deficient number, since it is larger than the sum of its proper divisors (1719530).

2149390 is a wasteful number, since it uses less digits than its factorization.

2149390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214946.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 2149390 is about 1466.0798068318. The cubic root of 2149390 is about 129.0540806437.

It can be divided in two parts, 214 and 9390, that added together give a square (9604 = 98²).

The spelling of 2149390 in words is "two million, one hundred forty-nine thousand, three hundred ninety".