2053690 has 16 divisors (see below), whose sum is σ = 3787560. Its totient is φ = 801280.

The previous prime is 2053673. The next prime is 2053699. The reversal of 2053690 is 963502.

It can be written as a sum of positive squares in 4 ways, for example, as 1079521 + 974169 = 1039^2 + 987^2 .

It is a super-2 number, since 2×2053690² = 8435285232200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2053699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2095 + ... + 2914.

2^2053690 is an apocalyptic number.

2053690 is a deficient number, since it is larger than the sum of its proper divisors (1733870).

2053690 is a wasteful number, since it uses less digits than its factorization.

2053690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 2053690 is about 1433.0701308729. The cubic root of 2053690 is about 127.1095836365.

The spelling of 2053690 in words is "two million, fifty-three thousand, six hundred ninety".