2105361390 has 32 divisors (see below), whose sum is σ = 5512219776. Its totient is φ = 510390560.

The previous prime is 2105361389. The next prime is 2105361403. The reversal of 2105361390 is 931635012.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 3189612 + ... + 3190271.

It is an arithmetic number, because the mean of its divisors is an integer number (172256868).

Almost surely, 2^2105361390 is an apocalyptic number.

2105361390 is an abundant number, since it is smaller than the sum of its proper divisors (3406858386).

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

2105361390 is a wasteful number, since it uses less digits than its factorization.

2105361390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6379904.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 2105361390 is about 45884.2172211753. The cubic root of 2105361390 is about 1281.6680300362.

The spelling of 2105361390 in words is "two billion, one hundred five million, three hundred sixty-one thousand, three hundred ninety".