2119730 has 32 divisors (see below), whose sum is σ = 4161456. Its totient is φ = 774144.

The previous prime is 2119717. The next prime is 2119739. The reversal of 2119730 is 379112.

2119730 = 114² + 115² + ... + 198².

It can be written as a sum of positive squares in 8 ways, for example, as 1442401 + 677329 = 1201^2 + 823^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2119696 and 2119705.

It is not an unprimeable number, because it can be changed into a prime (2119739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6122 + ... + 6458.

2^2119730 is an apocalyptic number.

2119730 is a deficient number, since it is larger than the sum of its proper divisors (2041726).

2119730 is a wasteful number, since it uses less digits than its factorization.

2119730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 2119730 is about 1455.9292565231. The cubic root of 2119730 is about 128.4577119147.

The spelling of 2119730 in words is "two million, one hundred nineteen thousand, seven hundred thirty".