2102390 has 32 divisors (see below), whose sum is σ = 4082400. Its totient is φ = 776704.

The previous prime is 2102383. The next prime is 2102411. The reversal of 2102390 is 932012.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14036 + ... + 14184.

It is an arithmetic number, because the mean of its divisors is an integer number (127575).

2^2102390 is an apocalyptic number.

2102390 is a deficient number, since it is larger than the sum of its proper divisors (1980010).

2102390 is a wasteful number, since it uses less digits than its factorization.

2102390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2102390 is about 1449.9620684694. The cubic root of 2102390 is about 128.1064787822.

The spelling of 2102390 in words is "two million, one hundred two thousand, three hundred ninety".