2020690 has 16 divisors (see below), whose sum is σ = 4156992. Its totient is φ = 692784.

The previous prime is 2020687. The next prime is 2020693. The reversal of 2020690 is 960202.

2020690 = T₁₇₆ + T₁₇₇ + ... + T₂₅₉.

It is an interprime number because it is at equal distance from previous prime (2020687) and next prime (2020693).

It is a super-2 number, since 2×2020690² = 8166376152200, which contains 22 as substring.

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (2020693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14364 + ... + 14503.

It is an arithmetic number, because the mean of its divisors is an integer number (259812).

2^2020690 is an apocalyptic number.

2020690 is an abundant number, since it is smaller than the sum of its proper divisors (2136302).

2020690 is a wasteful number, since it uses less digits than its factorization.

2020690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28881.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2020690 is about 1421.5097607825. The cubic root of 2020690 is about 126.4250781438.

Adding to 2020690 its reverse (960202), we get a palindrome (2980892).

The spelling of 2020690 in words is "two million, twenty thousand, six hundred ninety".